Entries |
Document | Title | Date |
20080204001 | Angle Sensor Device - An angle sensor device is for determining information of a movable object. The information includes angular position information and/or angular speed information. The angle sensor device includes (a) at least one magnetically encoded region arranged on the movable object, (b) at least one magnetic field detector, and (c) a unit. The at least one magnetic field detector is adapted to detect a signal generated by the at least one magnetically encoded region when the at least one magnetically encoded region moving with the movable object passes a surrounding area of the at least one magnetic field detector. The unit is adapted to determine the information based on the detected signal. | 08-28-2008 |
20080204002 | INCLINATION SENSOR - A first magnetic circuit in which a magnetic line of force flows only between a pair of permanent magnets is closed, when a rolling element is located at the stationary position. When a case is inclined to roll the rolling element to a first end portion, while a second magnetic circuit in which the magnetic line of force flows only between the rolling element and one of the permanent magnets is closed, a magnetic force detecting region detects the magnetic line of force of the other permanent magnet. When the case is inclined to roll the rolling element to a second end portion, while a third magnetic circuit in which the magnetic line of force flows only between the rolling element and the other permanent magnet is closed, the magnetic force detecting region detects the magnetic line of force of one of the permanent magnets. | 08-28-2008 |
20080211488 | Rotary manipulation type input apparatus - A rotary manipulation type input apparatus is disclosed. The rotary manipulation type input apparatus including a rotatable wheel; a magnet joined to the bottom of the wheel; a printed circuit board having one or more detection elements mounted thereon, the detection elements detecting a rotation of the magnet; a base having the printed circuit board joined thereto; and a holder joined to the base and supporting the wheel such that the wheel is rotatable, where the holder includes a body portion, an inclination portion extending in a particular angle from the body portion, and a securing portion extending from an end of the inclination portion and joined to the base, and the inclination portion is made of metal, has a reduced thickness and has superior endurance to external impact. | 09-04-2008 |
20080218158 | Rotary position sensor - A rotary position sensor for sensing the position of a movable object. The sensor includes a housing that defines a pair of cavities separated by a wall. A magnet, which is adapted to generate a magnetic field, is positioned within one of the cavities. The magnet is adapted to be coupled to the movable object. A magnetic sensor, which is adapted to generate an electrical signal that is indicative of the position of the movable object, is positioned within the other cavity. | 09-11-2008 |
20080224692 | Method and apparatus for position detection - A relative position of two articles is determined by generating a magnetic field using a magnetic element of a first article and determining a first measurement value and a second measurement value using a sensor arrangement of a second article, with the first and the second measurement values correlated to the size of the magnetic field in two different spatial directions and correspond to two different magnetic field components. The sensor arrangement is selected such that the first magnetic field component is essentially parallel to the direction of relative movement of the articles and the second magnetic field component is essentially perpendicular to the relative direction of movement of the articles. A difference signal of the absolute magnitudes of the first and second measured values is used to determine the relative position of the first and second articles. A position detector is also provided. | 09-18-2008 |
20080231261 | Hall-type sensor for measuring linear movements - A Hall-effect sensor assembly ( | 09-25-2008 |
20080231262 | Indicator Element For A Magnetic Rotation Angle Sensor - An indicator element for a magnetic rotation angle sensor having a field probe for generating a sensor signal in response to a geometric position of the indicator element relative to the field probe is disclosed. The indicator element has a permanent magnet with an annular cross-section having a plurality of segments, magnetization of the segments being in different directions so that a homogeneous magnetic field is formed in an inner region of the indicator element into which the field probe is arranged. At least two segments exhibit radial or diametrical magnetization and at least two segments exhibit lateral magnetization. | 09-25-2008 |
20080238412 | Position Sensor System - A position sensor system for detecting an absolute angular position of a rotor axle of an electric motor at a predetermined angular resolution W. The position sensor system include, a first Hall sensor device having a first sensor magnet set-up, set up on the rotor axle, and two first Hall sensors, which are set up at an angular offset with respect to the rotor axle so as to achieve a position angle resolution of 90°, and having a second sensor magnet set-up, set up on rotor axle, having n pole pairs and a number m of second Hall sensors, which are set up at an angular offset to one another with respect to the rotor axle, the set-up and the number n of pole pairs and the set-up and the number m of the second Hall sensors being selected so as clearly to detect angular segments at the predetermined angular resolution W within the angular range of the angular offset of 90°. | 10-02-2008 |
20080246466 | Sensor Device - The invention relates to a sensor device ( | 10-09-2008 |
20080278148 | Method of sensing a position of a movable component - A method of sensing a position of a movable component of an operator interface includes a step of receiving a first signal from a first Hall effect sensor and a second signal from a second Hall effect sensor. The method also includes a step of determining the position of the movable component based on the first signal and the second signal if the first and second signals represent expected values. The method includes a further step of determining the position of the movable component based on one of the first and second signals if the other of the first and second signals represents an unexpected value. | 11-13-2008 |
20080284414 | Hysteresis Brake, Especially for an Electric Camshaft Adjuster - A hysteresis brake is provided, such as for an electric camshaft adjuster, has with an excitation coil, a stator with an inner and outer stator part, and a moveable rotor with a hysteresis band which is movable between the inner and outer stator part. The excitation coil, which produces a main magnetic flux for a magnetic adjuster is arranged between the inner and outer stator part. A sensor enables the rotor and/or the hysteresis band to receive a secondary magnetic flux caused by the main magnetic flux, or enables the excitation coil to receive the main flux. An evaluation and control unit evaluates the magnetic flux received and determines angle and/or rotational speed information from detected changes of the magnetic flux. | 11-20-2008 |
20080284415 | PISTON STROKE COUNTING DEVICE - The device for counting the strokes of a piston sliding within a cylinder comprises a support housing a magnet which generates a magnetic field. The support also houses a sensor arranged to sense the magnetic field, such that the passage of the piston into a position corresponding with the magnet causes a disturbance in the magnetic field, which is sensed by the sensor, to indicate a stroke of the piston. | 11-20-2008 |
20080290858 | HAND-HELD ELECTRONIC DEVICE AND OPERATING MODULE THEREOF - A hand-held electronic device including a casing, a display provided at the casing and an operating module embedded in the casing is provided. The operating module includes an operating key, an elastic film, an elastic wall, a circuit board and a sensing unit. The operating key is provided at the elastic film, and the elastic wall is also provided at the elastic film and is around the operating key. The sensing unit has a first sensing element provided in the operating key and a second sensing element provided at the circuit board. | 11-27-2008 |
20080303514 | DETECTION DEVICE AND ROTATION ANGLE SENSOR - A detection device and a rotation angle sensor reduce the bending stress of a substrate, avoid breaking, peeling, and soldering cracks of patterns, and provide high reliability and low production cost. A detection device includes an outer case defined by a case body and a cover member. A support portion in the case body is provided with fitting protuberances that are fitted in fitting holes of a printed board, on which a detection component is mounted, so as to position the printed board. Each protuberance has ribs protruding from an outer peripheral surface thereof. The ribs are elastically or plastically deformed by contact with an inner peripheral surface of the corresponding fitting hole of the printed board, and position the board along a support surface of the support portion. A projecting portion of the cover member is elastically or plastically deformed so as to urge the board toward the support surface of the support portion so that the board is clamped between the projecting portion and the support surface and is positioned in a direction perpendicular to the support surface of the support portion. | 12-11-2008 |
20080309324 | HALL EFFFECT BASED ANGULAR POSITION SENSOR - A magnetic rotational position sensor that employs a single magnet mounted on a rotating turret that rotates on a housing that is fixedly mounted about a fixed ball stud. The turret is arranged to rotate around the ball stud in a first plane. A magnetic field orientation sensor is mounted to the housing, such that the magnet rotates along an arc tangent to the Hall effect sensor. The ball of the ball stud forms one half of a universal joint, the other half being formed by a shaft termination that is mounted to rotate with the turret, and also mounted for rotation in a second plane perpendicular to the first plane of the turret. | 12-18-2008 |
20080315866 | Control system - A control system for use in safety critical human/machine control interfaces is described, more particularly a joystick type control system and particularly a joystick type control system utilizing magnetic positional sensing. The control system provides a control input device having a movable magnet, a pole-piece frame arrangement positioned about the magnet, at least three magnetic flux sensors being positioned in said pole-piece frame arrangement and a monitoring arrangement for monitoring the output signal of each of said at least three sensors. | 12-25-2008 |
20090001966 | MOTOR SYSTEM EMPLOYING ANALOG ENCODED HALL EFFECT SENSOR POSITION INFORMATION FOR REDUCED WIRING - A system has a sensor assembly mounted adjacent to a moving magnetic member such as a motor rotor to sense its position. The sensor assembly includes Hall-effect sensors each having a binary output, configured such that distinct positions of the moving magnetic member correspond to distinct digital patterns of the outputs of the Hall-effect sensors. Encoding circuitry is coupled to the outputs of the Hall-effect sensors to generate a multi-valued analog output, distinct values of the multi-valued analog output representing corresponding distinct digital patterns of the outputs of the Hall-effect sensors. The encoding circuitry may employ a ladder network with weighted-value resistors contributing different components of an analog current sensed by the controller. The sensed current can be converted to digital position information using suitable analog-to-digital conversion circuitry. The multi-valued analog output can be conveyed on a single wire in contrast to the prior art which requires one wire per Hall-effect sensor. | 01-01-2009 |
20090001967 | Cylinder Control Unit - [Problem to be Solved] To specify motion range of piston | 01-01-2009 |
20090015243 | DEVICE AND SYSTEM FOR DETECTING POSITION - [Problems] To provide a position sensor small enough to be contained in a groove formed in an air cylinder in which minimum stroke for fixing and differential travel are improved. | 01-15-2009 |
20090015244 | CONTROL ELEMENT FOR A MOTOR VEHICLE - A control element is provided for a motor vehicle, particularly a rotary actuator, having at least one pivoted control knob, an extension formed on the control knob, and an electrical means to detect the rotary movement of the control knob, whereby the electrical means works together with the extension of the control knob, and whereby the electrical means is formed of at least two oppositely polarized magnets connected torsion-proof to the extension and by at least two sensors held stationary in the control element and detecting the magnetic field lines of the magnets. | 01-15-2009 |
20090015245 | MECHANISMS FOR SENSING THE OPENING AND CLOSING OF PHARMACEUTICAL CONTAINERS - Multiple embodiments of mechanisms for sensing the opening and closing of pharmaceutical containers are disclosed. In particular, the example sensing mechanisms of the invention trigger an automatic, built-in, electronic dosage reminder and open/close event logging operation while requiring no additional actions or otherwise changed behavior by the patient, in order to increase patient compliance with dosing regimens. Furthermore, certain embodiments of the sensing mechanisms are reliable and sufficiently low cost to be practical for use in commercial product applications. In one embodiment, the sensing mechanism includes two electrical conductors that have no electrical connection therebetween when the closure is not present on the container and a bridge conductor in the closure that provides an electrical connection therebetween when the closure is tightened onto the container. In this example embodiment, the state of the two electrical conductors may be monitored in order to sense a container opening and closing event. | 01-15-2009 |
20090021244 | Sensor - A magnetizing apparatus is for magnetizing a magnetizable object. The magnetizing apparatus comprises a programming unit being shaped in such a manner that, when the programming unit is positioned adjacent to the magnetizable object and an electrical programming signal is applied to the programming unit, the magnetizable object is magnetized so as to form at least two magnetically encoded regions with different magnetic polarity along an extension of the magnetizable object. | 01-22-2009 |
20090027043 | ROLLER ENCODER - An encoder is provided for a conveyor having a belt, a plurality of rollers supporting the belt and a motor for driving one of the rollers. The encoder includes a hall effect cartridge having at least one hall effect sensor. The hall effect cartridge is adapted to be mounted inside of one of the rollers supporting the conveyor. The encoder also includes a magnetic ring adapted to be mounted inside the roller and rotate with the roller, wherein the ball effect sensor monitors the rotation of the magnetic ring and generates a signal in the form of pulse data based on the rotation of the roller. | 01-29-2009 |
20090027044 | Measuring Arrangement Comprising a Magnet - The invention refers to a measuring arrangement where a magnet moves or is positioned because of the movement or position of an object, and this movement or positioning of the magnet is collected by a sensor, an in particular non-magnetic dividing wall being provided between the magnet and the sensor, and a mechanic converter, in particular a gear being arranged between the object and the magnet. | 01-29-2009 |
20090033315 | PERMANENT MAGNET TYPE POSITION SENSOR - A position sensor includes a longitudinally extending permanent magnet member at least two longitudinally extending arc-shaped projecting elements respectively projecting from the opposite ends toward the inside space to confront each other at a distance and a pair of compatible main magnetic sensors disposed in the inside space along the longitudinal axis at an interval so as to generate a pair of output signals when the permanent magnet member shifts along the longitudinal axis. The opposite ends of the permanent magnet member are configured to surround a common inside space and polarized to have opposite magnetic poles so as to provide in the inside space a magnetic field whose magnetic flux density becomes a maximum at a longitudinal center of the inside space and gradually becomes smaller as a position of the inside space shifts from the longitudinal center along a longitudinal axis of the permanent magnet members. The arc-shaped projecting elements are arranged so that the magnetic flux density and each of the output signals can be expressed by a cosine of a shift value from the longitudinal center, and the interval is ¼ of the cycle of the cosine. | 02-05-2009 |
20090045807 | POSITION DETECTION APPARATUS - A magnetic flux detection unit and a rectangular solid magnet are provided. The magnetic flux detection unit includes one or more pairs of Hall sensors, each pair having two Hall sensors arranged on a substrate. The solid magnet is arranged movably in a direction in a plane parallel to the substrate. Each pair of two Hall sensors is arranged on the substrate so that a line connecting the centers of magnetism sensing sections of each pair of two Hall sensors is orthogonal to a movement direction of the magnet. A tetragon has a long side and a short side and the long side has a inclination angle to the line connecting the centers of magnetism sensing sections of the each pair of two Hall sensors. The magnet has one N-pole and one S-pole separately magnetized in orthogonal to the substrate on which the Hall sensors are arranged. | 02-19-2009 |
20090051351 | Sensor System and Method for Determining an Angle of Rotation - A sensor arrangement for detecting an angle of rotation of a rotating body. At least one first sensor and one second sensor are connected to one another in a cascade in such a manner that the sensor signal from the first sensor is converted into a first control current which is applied as a bias current to the second sensor, the two angular dependencies of the first and second sensors being multiplied. This achieves improved interpolation when determining the angle of rotation on the basis of the sensor signals provided by the sensor arrangement. | 02-26-2009 |
20090051352 | STEERING ANGLE SENSOR - A steering angle sensor assembly | 02-26-2009 |
20090058400 | Device for Detecting Absolute Angel of Multiple Rotation and Angle Detection Method - A multiple rotation absolute angle detecting device includes a reduction gear mechanism having an eccentric ring fitted to a rotatable member, an internally threaded member in a stationary member, an externally threaded member engageable with the internally threaded member, and a speed reducing member to which rotation is transmitted from the externally threaded member. The externally threaded member undergoes a speed-reduced rotation at a reduction gear ratio of 1/L (L represents an arbitrarily value exceeding 1) about an axis O′ of rotation of the eccentric ring and the speed reducing member rotates around the rotatable member at a speed equal to that of the externally threaded member. A multiple rotation detecting unit for outputting a sinusoidal or sawtooth wave having one period per rotation includes a to-be-detected member in the speed reducing member and a detecting member in the stationary member that confronts the to-be-detected member. | 03-05-2009 |
20090072816 | Rotary Magnetic Encoder Assembly, Chip and Method - A rotary magnetic encoder assembly that has a freewheeling rotatable exciter magnet onboard that excites a magnetic field sensor region of an encoder chip when magnetic interaction between the exciter magnet and rotating encoder shaft causes the exciter magnet to rotate. In one embodiment, a drive magnet carried by the shaft magnetically couples with the exciter magnet because the medium therebetween has low magnetic permeability enabling rotation substantially in unison with the shaft. The exciter magnet is disposed in an onboard retainer pocket that accurately locates the magnet relative to the sensor region of the encoder chip. In one preferred embodiment, the exciter magnet retainer pocket is disposed onboard the encoder chip, such as by being formed as part of the package body of the chip that can be integrally formed or as part of a module that is mountable on the chip. | 03-19-2009 |
20090079420 | INTEGRATED ELECTRONIC CIRCUIT - Disclosed is an integrated electronic circuit comprising a core circuit that generates a useful signal as well as a buffer for storing the useful signal. The buffer stores the last read value of the useful signal for a predetermined period of time when the power supply is interrupted, and the buffer is disconnected from the power supply of the other circuits. | 03-26-2009 |
20090079421 | Measurement-Only Topological Quantum Computation - Measurement-only topological quantum computation using both projective and interferometrical measurement of topological charge is described. Various issues that would arise when realizing it in fractional quantum Hall systems are discussed. | 03-26-2009 |
20090085558 | HALL-EFFECT BASED LINEAR MOTOR CONTROLLER - A linear motion control device for use in a linear control system is presented. The linear motion control device includes a coil driver to drive a coil that, when driven, effects a linear movement by a motion device having a magnet. The linear motion control device also includes a magnetic field sensor to detect a magnetic field associated with the linear movement and an interface to connect an output of the magnetic field sensor and an input of the coil driver to an external controller. The interface includes a feedback loop to relate the magnetic field sensor output signal to the coil driver input. | 04-02-2009 |
20090091312 | Displacement measuring device - A displacement measuring device includes a stationary magnetic member for providing an accommodation space and a first and second magnetic circuits, a movable magnetic member disposed in the accommodation space to move in its longitudinal direction, a magnetic sensor for sensing magnetic flux flowing in the first and second magnetic circuits. The stationary member includes a sensor supporting member disposed in line with an axis of symmetry, a pair of yoke members axisymmetrically disposed at opposite sides of the sensor supporting member, a pair of permanent magnets each of which is disposed between one of the yoke members and the sensor supporting member. The permanent magnets are polarized so that magnetic flux flows in one of the magnetic circuits opposite in direction to magnetic flux flowing in the other magnetic circuit. The magnetic sensor is disposed on the sensor supporting member to confront the moving magnetic member at a first air gap. Each of the yoke members has a projection extending in parallel with the longitudinal direction of the movable magnetic member at a second air gap. Therefore, magnetic permeance of the first and second magnetic circuits changes when the moving magnetic member moves in the longitudinal direction thereof. | 04-09-2009 |
20090102459 | Device for Determining the Strength of the Magnetic Field of an Electromagnet - A device and a method for determining the magnetic field strength of an electromagnet is illustrated and described. The object to provide a device and a method for determining the strength of the field of an electromagnet, which allows even minor changes in the magnetic field to be determined quickly is achieved in terms of an apparatus by a device having a measurement device for determining the magnetic field of the electromagnet, a low-pass filter element which is connected to the first supply line and to the second supply line and is adapted to emit a signal at the output of the low-pass filter element from the voltage between the first supply line and the second supply line, which signal approximates to the time profile of the magnetic field strength in the electromagnet, having a low-pass filter downstream from the measurement device, having a high-pass filter connected in series with the low-pass filter element, and having a signal output, wherein the output of the measurement device and the output of the low-pass filter element are connected to the signal output. | 04-23-2009 |
20090102460 | POSITION SENSOR - A method of determining the position of a probe relative to a scale wherein the probe contains a sensor of the type comprising one or more pairs of orthogonal sensing elements X, Y operable to measure properties varying locally with the position of the probe relative to the scale. In use, a sinusoidally varying bias Ix, Iy is applied to each of the elements X, Y. The resultant outputs of elements X and Y are fed to summing means | 04-23-2009 |
20090102461 | ABSOLUTE POSITION MAGNETIC ENCODER WITH BINARY AND DECIMAL OUTPUT - An absolute position magnetic encoder includes a first magnetic track configured for a binary output, a second magnetic track configured for a decimal output, a first magnetic sensor positioned proximate the first magnetic track to detect the magnetic field of the first magnetic track, and a second magnetic sensor positioned proximate the second magnetic track to detect the magnetic field of the second magnetic track. The encoder is selectively operable to provide one of the binary output and the decimal output. | 04-23-2009 |
20090102462 | DISPLACEMENT SENSOR FOR A ROD - A displacement sensor ( | 04-23-2009 |
20090115404 | HALL EFFECT METHODS AND SYSTEMS - A hall effect system in accordance with one embodiment is described herein. The hall effect system comprises a housing, an input element coupled to the housing, a magnetic element coupled to the input element and configured to have a detectable magnetic flux, a sensing element adjacent to the magnetic element, the sensing element being configured to sense the magnetic flux, and a processing element coupled to the sensing element and configured to determine a position of the magnetic element relative to the sensing element be determining changes in and/or the orientation of the magnetic flux upon movement of the interface element by a user. | 05-07-2009 |
20090121707 | MAGNETIC FIELD ORIENTATION SENSOR - A magnetic angle sensor | 05-14-2009 |
20090121708 | Sensor Assembly For Detecting Positioning Of A Moveable Component - A method of designing a sensor assembly having a housing, a first magnet and a second magnet includes forming each of the first magnet and the second magnet into a wedge shape. The method further includes tilting each of the first magnet and the second magnet at an angle within the housing. | 05-14-2009 |
20090128136 | Device and process for non-contacting determination of a state variable, in particular the position, of at least one pipeline pig - A device and a process are described for non-contacting determination of a state variable, in particular the position, of at least one pipeline pig which is displaceable in a supply path. The pipeline pig includes a magnetic-field source. The device exhibits at least one sensor responding to the presence of the magnetic-field source. Said device is, in addition, provided with a circuit arrangement, to which the sensor-output signal of the sensor can be supplied and which generates an electrical output signal that is representative of the state variable of the pipeline pig at the sensor. A plurality of preferably identical sensors connected in parallel are arranged in succession along the supply path in the direction of motion of the pipeline pig. | 05-21-2009 |
20090134865 | Position sensor and method for operating a position sensor - The invention relates to a position sensor and to a method for operating a position sensor. In a position sensor, in particular, a selection area sensor in an automatic gearbox of a motor vehicle, wherein a displaceable slot is in magnetic contact in a contactless manner with a line of Hall elements, whereby the slot is arranged in the direction of displacement of each Hall sensor and comprises a strip made of bit-coded permanent magnets, an evaluation system is connected to the Hall elements which are used to transfer measuring signals of each Hall element. The evaluation system is embodied such that it can determine the actual position of the slot based on measuring signals of each of the Hall elements. The aim of the invention is to improve the connection between the position sensor and a respective evaluation system. As a result, the signal outputs of the two Hall elements are combined in order to add the output signals. | 05-28-2009 |
20090140725 | INTEGRATED CIRCUIT INCLUDING SENSOR HAVING INJECTION MOLDED MAGNETIC MATERIAL - An integrated circuit includes a magnetic field sensor and an injection molded magnetic material enclosing at least a portion of the magnetic field sensor. | 06-04-2009 |
20090174395 | METHODS AND APPARATUS FOR ANGULAR POSITION SENSING USING MULTIPLE QUADRATURE SIGNALS FROM FREQUENCY INDEPENDENT SINUSOIDS - A sensor minimizes effects of sensor element misalignment with respect to a magnet. In one embodiment, a sensor comprises a magnet, first, second, third, and fourth sensor elements positioned in relation to the magnet, and a signal processing module to process output signals from the first, second, third, and fourth sensor elements and generate first and second differential signals for minimizing effects of positional misalignment of the first, second, third, and fourth sensor elements with respect to the magnet by maximizing a quadrature relationship of the first and second differential signals. | 07-09-2009 |
20090206826 | Strut position sensor - A power actuator system for a movable vehicle panel such as a lift gate assembly includes a position sensor that detects the pivotal movement of a strut mechanism of the power lift gate assembly relative to the host vehicle. A rotary sensor is coupled directly to an end component of the strut mechanism and provides signals that indicate the total amount of pivotal or rotary movement of the strut mechanism and the lift gate during the opening and closing of the lift gate. The signals provide information to determine the absolute position of the strut and the lift gate for processing in the vehicle's electronic control unit. | 08-20-2009 |
20090212766 | JOYSTICK AND METHOD OF MANUFACTURING THE SAME - A joystick having a movable member that includes a shaft portion and a spherical portion wherein the shaft portion has a diameter less than the spherical portion. An actuating member is secured to the shaft portion of the movable member to provide actuation of the movable member. A magnet is disposed within the spherical portion of the movable member and positioned adjacent a three axis sensor such that the magnet moves in a hemispherical pattern along the three axis sensor to operate a device. | 08-27-2009 |
20090212767 | REMOTE TRANSMITTER FOR ANALOGUE GAUGES - In a method for converting an analogue measurement indication into electric signals, the angle of rotation of the pointer of an analogue display is contact free detected and converted into a proportional electrical output signal. This is achieved by using an application-specific integrated circuit having a Hall sensor which can detect the magnetic flux density parallel to the surface of the integrated circuit. | 08-27-2009 |
20090273341 | SYSTEM INCLUDING SIGNAL OFFSET ESTIMATION - A system includes a first circuit configured to convert a first analog signal to a first digital signal. The system includes a second circuit configured to determine an area of the first digital signal above a set value and an area of the first digital signal below the set value to provide a second digital signal indicating an offset of the first analog signal. | 11-05-2009 |
20090278529 | DUAL POLE MAGNET STRUCTURE HAVING TWO MAGNETS 90 DEGREES OUT OF PHASE FOR POSITION SENSING IN AN ACTUATOR - An increment sensor assembly includes a magnet structure having at least two dual pole magnets that are magnetized 90 degrees out of phase. The magnet structure is mounted to an output shaft rotatable about an axis of rotation. At least one Hall effect sensor is associated with each magnet to determined polarity change of the magnet structure per quadrant. | 11-12-2009 |
20090278530 | SENSOR SYSTEM - Disclosed is a sensor array for evaluating the signals of a magnetically sensitive sensor, in which the changes in the magnetic field caused by a moved transmitting element ( | 11-12-2009 |
20090278531 | Integrated Circuit for Controlling an Electric Motor - An integrated circuit for controlling an electric motor, which has a primary component with a coil and a permanently magnetic secondary component cooperatively connected via an air gap to the primary component, has a semiconductor substrate in which are integrated a microcontroller and/or a pre-amplifier for controlling the coil of the electric motor. For detecting the position of the permanently magnetic secondary component, at least two magnetic field sensors with their measurement axes aligned crosswise relative to each other are integrated in the semiconductor substrate. | 11-12-2009 |
20090284252 | Device for measuring the absolute position of at least two members that are movable or rotatable relative to each other - The objective is to provide a measuring device, which makes it possible to determine the absolute position (s) of a movable member comprising a permanent magnetic encoder ( | 11-19-2009 |
20090284253 | SENSOR DEVICE FOR AN ELECTRIC MACHINE - The aim of the invention is to create an inexpensive sensor system for a movable electric machine in order to determine positions, the sensor signal featuring zero crossings. Said aim is achieved by a sensor device ( | 11-19-2009 |
20090295374 | Sensor - A sensor according to the invention has a U-shaped magnet having a pair of opposing portions spaced apart from each other, forming a flux-free region between the pair of opposing portions. A Hall element varies an output voltage according to the density of passing flux. A spacer regulates the positional relationship between the Hall element and the U-shaped magnet such that the Hall element is positioned in the flux-free region of the U-shaped magnet and a housing covers the spacer. | 12-03-2009 |
20090315541 | ANGULAR POSITION SENSOR - An angular position sensor and method that relies on a stationary circular array of Hall sensors and a rotatable circular array of magnets arranged about a common axis. A periodic and simultaneous reading of all of the Hall sensor outputs is used to determine angular velocity. | 12-24-2009 |
20090322315 | LINEAR-MOVEMENT SENSOR IN AN EGR VALVE - The invention concerns a device for determining the position of a linearly displaceable element ( | 12-31-2009 |
20090322316 | HYDRAULIC CYLINDER ROD POSITION SENSING METHOD - A method for detecting a position of a cylinder rod includes depositing a plurality of welds substantially along the length of a steel rod and depositing a corrosion resistant material onto the steel rod by laser cladding. The cylinder rod is then placed proximate to a sensor assembly. One of the cylinder rod and the sensor assembly are moved relative to the other. The sensor assembly detects a change in properties between the steel rod and the welds and generates a corresponding signal. A change in position of the cylinder rod or damage to the cylinder rod can be detected by analyzing the number and strength of the signals. | 12-31-2009 |
20100013462 | INSTRUMENT FOR AUTOMATION WITH SINGLE-HANDED OPERATION - In a measuring device for automation technology with single-hand servicing, a housing closable with a lid is provided. Arranged at an edge of the lid is a movable ring element, which is mounted to be slightly shiftable parallel to the longitudinal axis of the lid and to be rotatable about the longitudinal axis of the lid. On the lid are sensors, which serve for registering rotary and linear movement of the ring element, via which a display unit is operated. | 01-21-2010 |
20100013463 | Rotation sensor - A rotation detecting sensor (A) is fixed to a sensor fixing member (7), through which it is fitted to a wheel support bearing assembly for detecting the rotation of a rotatable ring of the wheel support bearing assembly. A sensor unit (B) is made up of a sensor element ( | 01-21-2010 |
20100045268 | COMPARATOR CIRCUIT HAVING LATCHING BEHAVIOR AND DIGITAL OUTPUT SENSORS THEREFROM - A digital output sensor ( | 02-25-2010 |
20100052660 | PORTABLE ELECTRONIC DEVICE WITH HALL SENSOR - A portable electronic device comprises a first body having a magnet member mounted thereon; a second body slidably assembled on the first body and including a Hall sensor mounted thereon. The magnet member acts on the Hall sensor with the first body is moved relative to the second body, thereby switching the portable electronic device to a work mode when the Hall sensor faces the magnet member or a power save mode when the Hall sensor is spaced away from the magnet member. | 03-04-2010 |
20100060267 | Magnetic Rotational Angle Transducer - A magnetic rotational angle transducer has at least one Hall sensor ( | 03-11-2010 |
20100060268 | ANGLE SENSOR - A magnet which is attached to a rotary body and which is rotatable together with the rotary body; an annular yoke which extends annularly to surround an outer peripheral surface around a rotary shaft of the magnet and in which a notch portion is formed in a part in the extending direction; and a hall element which is disposed in the notch portion and which detects the strength of a magnetic field in the radial direction of the magnet and detects the strength of a magnetic field in the rotation angle direction perpendicular to the magnetic field in the radial direction of the magnet are provided. The angle of rotation of the magnet is calculated on the basis of signals corresponding to the magnetic field strengths in the radial direction and rotation angle direction detected by the hall element. | 03-11-2010 |
20100072985 | MAGNETIC RESONANCE SYSTEM WITH ORIENTATION DETECTION OF TOOLS - A magnetic resonance system has a basic field magnet that generates a static basic magnetic field that is essentially homogeneous within an examination volume, the basic magnetic field having a basic direction. At least one tool can be inserted into the examination volume and can be removed from it. The at least one tool has a number of Hall elements. Each Hall element of the at least one tool is fashioned such that a binary signal emitted by said Hall element characterizes whether the basic magnetic field has a component that, relative to a respective element direction of the respective Hall element, is greater than a threshold. The respective element directions of the respective Hall elements differ from one another in pairs. The Hall elements of the at least one tool communicate in terms of data with an evaluation device of the magnetic resonance system to transmit the binary signal that it emits. The evaluation device uses the transmitted binary signal to determine an orientation of the at least one tool relative to the basic direction and takes additional measures depending on this orientation. | 03-25-2010 |
20100109654 | Method for Manufacturing a Mounting Element with an Angle Sensor - The method is used for manufacturing a mounting element with an angle sensor for an actuator in an internal combustion engine. The mounting element has electrical connections ( | 05-06-2010 |
20100117629 | Detecting three different open ranges in a flip device - A magnetic field sensor, such as a Hall effect sensor, and a corresponding magnetic field producing unit, such as a magnet, can be both positioned near a hinge of a hinged device, such that the magnet, in one part of the device, rotates around the Hall effect sensor, in another part of the device. Three positions can, thereby be detected: (1) when the device is closed and the magnet is “above” the sensor, (2) when the device is partially open and the magnet is “to the side” of the sensor, and (3) when the device is fully open and the magnet is “below” the sensor. The hinged device can have the hinge offset slightly to enable the magnet to rotate around the sensor as described. Alternatively, the locations of the magnet and sensor can be reversed. | 05-13-2010 |
20100127693 | TRANSMISSION SHIFT RAIL POSITION SENSOR - The invention relates to a shift rail position sensing system. There is a need for a rapid and accurate shift rail position sensing system. In a transmission shift mechanism shifts are performed by axially moving a shift rail which is slidable in a rail bore in a housing. A rail position sensing system includes a groove formed in the shift rail and a Hall effect sensor. The groove includes a curved bottom surface, a first ramp surface extending from one side of the bottom surface to an outer peripheral surface of the shift rail, and a second ramp surface extending from a second side of the bottom surface to an outer peripheral surface of the shift rail. The Hall effect sensor has a sensor shaft with an axis normal to an axis of the shift rail. The sensor shaft has a sensing tip which adjacent to and spaced apart from the groove, so that the Hall effect sensor is sensitive an entire range of positions of the shift rail. | 05-27-2010 |
20100134095 | ARRANGEMENT FOR SCANNING A LINEAR OR CIRCULAR MEASURING ROD MADE OF FERROMAGNETIC MATERIAL - Disclosed is an arrangement for high-resolution determination of positions on linear or circular ferromagnetic measuring rods ( | 06-03-2010 |
20100156397 | METHODS AND APPARATUS FOR AN ANGLE SENSOR FOR A THROUGH SHAFT - A sensor minimizes effects of sensor element misalignment with respect to a magnet. In one embodiment, a sensor comprises a magnet, first, second, and third sensor elements positioned in relation to the magnet, and a signal processing module to process output signals from the first, second, and third sensor elements and generate first and second signals for minimizing effects of positional misalignment of the first, second, and third sensor elements with respect to the magnet by maximizing a quadrature relationship of the first and second signals. | 06-24-2010 |
20100164483 | Hall Element and Magnetic Sensor - A Hall element is provided which has a high sensitivity and contributes to an improvement in S/N ratio per current by using a low-concentration n-well within a suitable range. The Hall element includes a p-type semiconductor substrate layer | 07-01-2010 |
20100176799 | SENSOR INCLUDING TWO CODE RINGS AND A MAGNETIC FIELD SENSOR BETWEEN THE CODE RINGS - An apparatus includes a shaft and a first code ring including a first number of pole pairs. The first code ring is attached to the shaft. The apparatus includes a second code ring including a second number of pole pairs different from the first number. The second code ring is attached to the shaft and spaced apart from the first code ring. The apparatus includes a first magnetic field sensor between the first code ring and the second code ring for sensing a first superposition of magnetic fields provided by the first code ring and the second code ring. | 07-15-2010 |
20100181993 | DIRECTION DETECTION SENSOR - A sensor responsive to movement of a detection target includes a magnetic field transducer operative to provide a magnetic field signal proportional to a magnetic field associated with the detection target, a peak detector for tracking positive and negative peaks of the magnetic field signal to generate a tracking signal, and a comparator having a first input responsive to the magnetic field signal, a second input responsive to an input signal related to the tracking signal, and an output at which is provided an output signal comprising first pulses having a first pulse width when the detection target moves in a first direction and second pulses having a second pulse width when the detection target moves in a second direction. | 07-22-2010 |
20100188074 | STROKE SENSOR AND ROTATION ANGLE SENSOR - A stroke sensor has two magnets, which are magnetized in a cross-section direction and are displaced in a longitudinal direction, and two magnetism sensitive sections arranged parallel to the longitudinal direction. The magnets have circular-arc-shaped swelling end edges respectively and are magnetized such that the swelling end edges have opposite polarities. Thus, a distribution of a magnetic flux density on an arrangement axis substantially coincides with a sine curve. The magnetic flux having such the distribution is displaced in the longitudinal direction together with the magnets. The magnetism sensitive sections are arranged on the arrangement axis to be distant from each other by a distance of one fourth of a cycle of the sine curve. Thus, the stroke sensor that is not affected by temperature and that has high sensing accuracy can be provided. | 07-29-2010 |
20100201351 | APPARATUS AND METHOD FOR SENSING ORIENTATION - A magnetometer includes a spherical magnet member movably disposed within an enclosure. There is a plurality of Hall effect sensors on the enclosure and circuitry responsive to the plurality of Hall effect sensors. The circuitry is configured to indicate changes in the relative orientation of the spherical magnet member and the plurality of Hall effect sensors. A change in orientation of a movable structure is sensed by placing a magnetometer on the movable structure, allowing the spherical magnet member in the enclosure to assume an initial orientation therein; and monitoring the circuitry that is responsive to the Hall effect sensors. Alternatively, the magnetometer is placed on a stationary structure in sensing proximity to the movable structure. | 08-12-2010 |
20100213927 | ABSOLUTE MAGNETIC POSITION ENCODER - An absolute magnetic position encoder includes a magnet carrier ( | 08-26-2010 |
20100219810 | VERTICAL HALL EFFECT SENSOR WITH CURRENT FOCUS - A complimentary metal oxide semiconductor (CMOS) sensor system in one embodiment includes a doped substrate, a doped central island extending downwardly within the doped substrate from an upper surface of the doped substrate, and a first doped outer island extending downwardly within the doped substrate from the upper surface of the doped substrate, the first outer island electrically isolated from the central island within an upper portion of the substrate, and electrically coupled to the central island within a lower portion of the substrate. | 09-02-2010 |
20100253324 | Non-Contacting Position Sensor Using a Rotating Magnetic Vector - A sensor for sensing the position of an object includes a magnet and a magnetic flux sensor. The magnet has dimensions that include a length, a width and a height. The magnet is adapted to generate a flux field. The flux field has a magnitude of flux and a flux direction. The flux direction changes along at least one of the dimensions. The magnetic flux sensor is mounted adjacent the magnet. The magnet provides a rotating magnetic field vector. A method for magnetizing a magnet to create the rotating magnetic field vector is also disclosed. | 10-07-2010 |
20100259250 | MAGNETIC SENSOR DEVICE ON A MICROCHIP - The invention relates to a microelectronic magnetic sensor device that comprises at least one sensor unit ( | 10-14-2010 |
20100264909 | Circuits and Methods for Providing a Magnetic Field Sensor with an Adaptable Threshold - A magnetic field has a threshold that adapts in relation to a magnitude of a magnetic field signal representative of a movement of an object. A corresponding method adapts a threshold in relation to a magnitude of a magnetic field signal representative of a movement of an object. | 10-21-2010 |
20100264910 | Use of Topological Charge Measurements To Change Between Different Qubit Encodings - A method for changing qubit encoding for implementation of a quantum computational gate is disclosed. Such a method may include providing first and second qubits encoded in a plurality of non-abelian anyons according to a first encoding scheme. The first encoding scheme may not be suitable for implementing a certain topologically protected quantum computational gate, such as an entangling gate, for example. Successive topological charge measurements may be performed on at least a subset of the anyons until the qubits are encoded according to a second encoding scheme. The second encoding scheme may be different from the first encoding scheme, and may be suitable for implementing the gate. | 10-21-2010 |
20100264911 | SYSTEM FOR TESTING ELECTROMAGNETIC CHARACTERISTICS OF AN ELECTROMAGNETIC STEEL SHEET IN RESPONSE TO A NON-SINUSODIAL WAVE CONTROL SIGNAL - A system for testing electromagnetic characteristics of an electromagnetic steel sheet includes: a driving unit operable based on a non-sinusoidal wave control signal from a control unit and a floating voltage to output a control output; a power output unit operable based on the control output from the driving unit to output a voltage output at an output side coupled across a first winding wound around the electromagnetic steel sheet such that an exciting current flowing through the first winding is generated in response to the voltage output, thereby resulting in an induced voltage across a second winding wound around the electromagnetic steel sheet; and a measuring unit outputting to the control unit an output corresponding to the exciting current and the induced voltage measured thereby such that the control unit obtains the electromagnetic characteristics of the electromagnetic steel sheet based on the output. | 10-21-2010 |
20100271010 | Tool Sensor, System and Method - A tool sensor detects the presence of a tool and optionally identifies that tool as the correct tool for placement in the sensor. The tool sensor may be in the form of a pad, with openings sized to fit the tool, and may have designated locations for a plurality of tools, in which each tool is identified as being the correct tool for its location on or in the sensor. | 10-28-2010 |
20100289484 | MULTI-POSITION SWITCH HAVING DUAL OUTPUT HALL DEVICE - A multi-output switch includes a dipole magnet configured to move from a central position to either a first position or a second position and a Hall Effect sensor having a first sensitive area with a first output and a second sensitive area with a second output, wherein the sensor is relatively positioned such that when the magnet is in the central position, the first output and second output read off, when the magnet is in the first position the first sensitive area is activated and the first output reads on, and when the magnet is in the second position the second sensitive area is activated and the second output reads on. The switch may further include a magnet holder configured to house the magnet and define a pathway of movement for the magnet. | 11-18-2010 |
20100308801 | OFFSET CANCELLING CIRCUIT - In an offset cancelling circuit of a Hall element, a voltage is applied from four directions and from outside such that a current flowing in the Hall element is switched by 90°, to set a first state through a fourth state, and output voltages of the Hall element in the first state through the fourth state are averaged. | 12-09-2010 |
20100327854 | DEVICE FOR DETERMINING THE POSITION OF AN OBJECT WITH AN ENLARGED MEASUREMENT RANGE - The invention concerns a device ( | 12-30-2010 |
20110001470 | DEVICE FOR MEASURING A POSITION USING THE HALL EFFECT - A position measuring device using the Hall effect, includes: a box ( | 01-06-2011 |
20110006757 | LINEAR SEGMENT OR REVOLUTION COUNTER WITH A FERROMAGNETIC ELEMENT - Absolute counters for linear segments or revolutions having a Wiegand element (WE) in the main field between two opposite excitation magnets (EM | 01-13-2011 |
20110006758 | ANGLE MEASURING SYSTEM AND METHOD FOR PRODUCING AN ANGLE MEASURING SYSTEM - An angle measuring system includes a first component group and a second component group, the first component group being mounted in a manner allowing rotation about an axis relative to the second component group. The first component group includes a ring having a running surface and an angle scaling. The second component group has a further ring having a further running surface, as well as a sensor for scanning the angle scaling. Rolling elements are arranged between the running surfaces, the angle scaling being applied such that a geometric pattern of the angle scaling in a first region differs from a geometric pattern of the angle scaling in a second region as a function of radial runouts of the running surfaces and/or of the rolling elements. | 01-13-2011 |
20110012591 | ANGLE MEASURING SYSTEM - An angle measuring system includes a first component group and a second component group, the first component group being mounted so as to be rotatable relative to the second component group. The first component group includes a ring having a running surface and an angle scaling. The second component group has a sensor for scanning the angle scaling as well as a printed circuit board having an electronic circuit for evaluating sensor signals producible by the scanning. The second component group furthermore includes a solid ring, on which another running surface is situated and which has a first recess for accommodating the circuit board and a second recess for accommodating an electrical conductor. The conductor connects the sensor electrically to the electronic circuit situated at a distance from the sensor. | 01-20-2011 |
20110025307 | DIRECTIONAL SPEED SENSING SYSTEMS AND METHODS - A directional speed sensor comprises first and second Hall-effect modules. The first Hall-effect module outputs a first current pulse for a first predetermined period when a tooth of a toothed wheel that rotates with a shaft of the vehicle passes the first Hall-effect module in a first rotation direction and outputs the first current pulse for a second predetermined period when the tooth passes the first Hall-effect module in a second rotational direction. The second Hall-effect module is electrically connected in parallel with the first Hall-effect module, is angularly offset from the first Hall-effect module with respect to a center of the shaft, outputs a second current pulse for the first predetermined period when the tooth of the toothed wheel passes the second-Hall-effect module in the first direction, and outputs the second pulse for the second predetermined period when the tooth passes the second Hall-effect module in the second direction. | 02-03-2011 |
20110031961 | ENDOTRACHEAL TUBE SENSOR - Various devices and methods for locating an object using magnetic fields are provided. In one embodiment, a device is provided having a housing with an array of sensors that can measure a magnetic field of an object and calculate a three dimensional location of the object based upon the measured magnetic field. A display device for displaying the three dimensional location of the object can also be included. In one exemplary embodiment, an implantable device, such as an endotracheal tube, is provided having the object embedded therein. The array of sensors can be used to measure the magnetic field of the object. The device can then calculate the three dimensional location of the object and the display device can display the calculated location of the object embedded in the implantable device. | 02-10-2011 |
20110043193 | MAGNETIC LINEAR SENSOR ARRANGEMENT - A magnetic linear sensor arrangement for detecting the position of a component that can be moved along a predefined movement path includes a device disposed along the movement path for generating a magnetic field whose polarity changes along the movement path of the component, and at least one galvanomagnetic detector with at least two measurement fields, which is arranged within the effective region of the magnetic field. The detector can be moved relative to the magnetic field along the movement path of the component. The galvanomagnetic detector is a Hall sensor which is designed to measure the magnetic field spatially or in at least two directions within a plane. The Hall sensor is provided with at least two measurement fields which are rotationally offset and perpendicular to each other in a corresponding plane. | 02-24-2011 |
20110050210 | Vertical Hall Sensor and Method for Manufacturing a Vertical Hall Sensor | 03-03-2011 |
20110068775 | Clutch Position Sensor for Vehicle Transmission - A transmission clutch position sensor includes two Hall sensors located at opposite ends of a flux concentrator outside the casing of the transmission to sense a magnetic field generated by a magnet attached to the clutch piston. To reduce sensitivity to magnet-to-sensor gap tolerances, a ratio of the voltage of one Hall sensor to the sum of the voltages from both Hall sensors is used to correlate to the piston and, hence, clutch position. | 03-24-2011 |
20110115476 | SENSOR SYSTEM INCLUDING MULTIPLE COMPARATORS - A system including a sensor circuit and comparison circuitry. The sensor circuit is configured to provide a sensed signal. The comparison circuitry is configured to receive an input signal that corresponds to the sensed signal. The comparison circuitry provides output signals that switch state at different levels of the input signal. | 05-19-2011 |
20110121823 | MESHING ENCODER GEAR AND SENSOR ASSEMBLY - A sensor assembly for a transmission includes a meshing encoder gear and an unbiased sensor. The gear teeth of the encoder gear have target surfaces that generate a magnetic field. The sensor targets the magnetized target surfaces to detect the magnetic field or the change in the magnetic field and sends a signal to a controller that is converted to a speed measurement of the encoder gear. | 05-26-2011 |
20110127993 | Position Monitoring Device, System and Method - A position monitoring system includes, two Hall-effect sensors in operable communication with one another such that they produce a single output, the two Hall-effect sensors having opposing polarities functionally directed toward one another. | 06-02-2011 |
20110133723 | Sensor Arrangement and Method for Operating a Sensor Arrangement - A sensor arrangement has a plurality of Hall sensor devices, each configured to provide a sensor voltage in response to a magnetic field intensity. A selection unit is configured to forward either of the sensor voltages in response to a selection signal. A transconductance amplifier is configured to generate a sensing current depending on a forwarded sensor voltage. A filter stage has a resistor and a filter capacitor connected in parallel in a switchable manner in response to a first switching signal. The filter stage is configured to generate a filtered voltage across the filter capacitor depending on a sensing current. A capacitive analog-to-digital converter has an input capacitor being connected to the filter capacitor in a switchable manner in response to a second switching signal. The analog-to-digital converter is configured to generate a digital sensor value based on a filtered voltage. The sensor arrangement further has a control circuit which is configured to generate the selection signal and the first and the second switching signals such that for each of the forwarded sensor voltages in a first time segment, the filtered voltage across the filter capacitor is generated, and in a second time segment, the input capacitor is connected to the filter capacitor. | 06-09-2011 |
20110133724 | MAGNETIC POSITION DETECTOR - Magnetic members are arranged along a straight line and can be placed face-to-face with spin-valve magnetoresistive elements. The magnetic pole faces of the magnetic members which can be face-to-face with the spin-valve magnetoresistive elements have different magnetic polarities from the magnetic pole faces of neighboring magnetic members. The magnetic members are arranged at a uniform pitch. Each magnetic member is spaced from neighboring magnetic members. X/P is from 40% to 60%, where X is length of each magnetic member along an arrangement direction of the magnetic members, and P is pitch of the magnetic members along the arrangement direction. | 06-09-2011 |
20110133725 | HALL-TYPE LINEAR-TRAVEL SENSOR FOR INTERMEDIATE TRAVEL - A sensor assembly for detecting the position of a linearly movable element has a magnet and a sensor for detecting the position of the magnet. A stationary support is provided that is configured for carrying the sensor and for guiding the element that carries the magnet and is linearly movable relative to the support. | 06-09-2011 |
20110181272 | Metering apparatus for liquids and method for metering liquids - A metering apparatus for liquids and a method for metering liquids which facilitate the operation of a further metering after detaching the pipette point or syringe | 07-28-2011 |
20110187351 | ANGLE SENSOR AND METHOD FOR DETERMINING AN ANGLE BETWEEN A SENSOR SYSTEM AND A MAGNETIC FIELD - An angle sensor for determining an angle between a sensor system and a magnetic field has a magnet which generates the magnetic field and is adjustable in different rotational positions relative to the sensor system with regard to a rotation axis. The sensor system has a first magnetic field sensor for detecting a first magnetic field component oriented transversely to the rotation axis and a second magnetic field sensor for detecting a second magnetic field component, which is situated transversely to a plane extending from the rotation axis and the first magnetic field component. A third magnetic field sensor of the sensor system detects a third magnetic field component, which is oriented in the direction of the rotation axis. To adjust the position of the sensor system relative to the rotation axis of the magnetic field, the sensor system is positioned relative to the magnet in such a way that the third magnetic field component is largely independent of the rotational position. | 08-04-2011 |
20110204880 | SCANNER SYSTEM FOR GARAGE EQUIPMENT FOR MOTOR VEHICLE GARAGES - The present invention concerns a scanner system for scanning the surface of an object, especially a vehicle wheel, the system comprises a mobile scanner including at least one sensor adapted to sense at least one position on the surface of the object and a reference system to which the sensor is sensitively adapted to provide at least one sensor signal corresponding the at least one sensed position on the surface with respect to the reference system, wherein the reference system is designed to provide a magnetic field having at least one orientation and the sensor is a magnetic sensor to be positioned within said magnetic field in proximity of or on the surface to be scanned. | 08-25-2011 |
20110204881 | ZERO POSITIONING FOR SENSOR - An arrangement to establish a zero position for a sensor that serves to detect movement between parts of a technical system that are connected by a ball joint. The arrangement comprising a joint housing of the ball joint rigidly connected to a first part of the system, a ball pin rigidly connected to a second part of the system, and a sensor for detecting the movements of the ball pin. At least a first sensor element is disposed on the ball pin and a second sensor element is disposed on a part of the system that is immovable with respect to the joint housing. An axial area of the lateral surface of the ball pin is flattened and positively locks an inner contour of the mounting eye or a disk-shaped element which abuts the mounting eye and is fixed by positively locking with the second part of the system. | 08-25-2011 |
20110234207 | MAGNETIC TRANSDUCER CONFIGURATION FOR MAGNET-BASED POSITION SENSORS HAVING IMPROVED GEOMETRY FOR MORE PRECISE POSITION DETECTION - A magnetic transducer configuration is described having at least one permanent magnet element, which is magnetized in its longitudinal direction and has a pole transition of the longitudinal section having a pole transition. The permanent magnet element has a cross section in the pole transition of the longitudinal section, which is larger than the cross section of the permanent magnet element in an area outside of the pole transition of the longitudinal section. A magnetic position sensor is also described having a magnetic field sensor array and the magnetic transducer configuration according to the present invention. The magnetic field sensor array and the magnetic transducer configuration are situated displaceably in the longitudinal direction to one another in a plane-parallel manner. The magnetic field sensor array has at least one magnetic field sensor lying in a path along which the permanent magnet element moves during displacement of the magnetic transducer configuration with respect to the magnetic field sensor array. | 09-29-2011 |
20110234208 | CONFIGURABLE NON-CONTACT POSITION SENSOR - Embodiments herein relate to the general art of motor vehicles, and to the particular field motor vehicle components, especially sensors for electronic throttle controls. Particular embodiments include configurable Hall-effect sensors for use in vehicle controls. In various embodiments, the configurable sensors may include a flexible over molding that may allow the sensor assemblies to achieve an environmental rating conforming International Protection Rating IP 67 and/or IP 66. Additionally, because the sensor assemblies are modular, a single assembly may be configured in any number of different ways, including direct drive and indirect drive applications and multiple different proprietary interface connections, while maintaining compliance with Society of Automotive Engineers (SAE) standards. | 09-29-2011 |
20110248705 | STROKE AMOUNT DETECTING DEVICE - A stroke amount detecting device includes a first magnetic field generation member, a second magnetic field generation member, and a magnetic sensor unit. The first magnetic field generation member and the second magnetic field generation member are opposed to each other with respect to a direction perpendicular to a straight stroking axis of a stroking object, and magnetized in opposite directions. The magnetic sensor unit is movable in an area between the first magnetic field generation member and the second magnetic field generation member, along a straight traveling axis that is parallel to the straight stroking axis relative to the first magnetic field generation member and the second magnetic field generation member in accordance with a stroke motion of the stroking object. The magnetic sensor unit has a magnetosensitive surface facing a direction parallel to the traveling axis, thereby to detect an amount of stroke of the object. | 10-13-2011 |
20110254539 | Target Activated Sensor - A sensor assembly configured to sense a position of a seat in a vehicle includes a housing defining a cavity and having an open end. The sensor assembly may also include a carrier removably disposed in the housing cavity via the open end, wherein a permanent magnet may be disposed within a magnet cavity defined in the carrier, wherein the permanent magnet may establish a magnetic field. The sensor assembly may further include a single pole disposed within a pole cavity defined in the carrier and spaced from the permanent magnet and positioned in the magnetic field. In addition, the sensor assembly may include a magnetic sensor element affixed to a printed circuit board (PCB) and positioned in the magnetic field and adjacent to an end of the single pole. The magnetic sensor element and PCB may be at least partially disposed within the cavity. | 10-20-2011 |
20110267040 | LINEAR OR ROTARY POSITION SENSOR WITH A PERMANENT MAGNET FOR DETECTING A FERROMAGNETIC TARGET - The disclosure relates to a contactless magnetic sensor for measuring the angular or linear movement of a ferromagnetic target. The purpose of the disclosure is to make a position sensor having reduced dimensions and capable of detecting a piece of position information as soon as the sensor is powered without degrading the performance thereof. To this end, the disclosure relates to a mobile sensor that includes at least one permanent magnet, at least one ferromagnetic member at least one magnetically sensitive member, the permanent magnet having an upper surface opposite the ferromagnetic target, wherein the permanent magnet has a substantially cylindrical or parallelepiped shape and includes a cavity, the ferromagnetic member being arranged inside the cavity and the magnetically sensitive member being arranged inside the cavity above the ferromagnetic member and below the upper surface of the magnet. | 11-03-2011 |
20110267041 | Hall Rotary Transformer and Hall Rotation Angle Encoder Made of It - A hall rotary transformer comprises a rotary transformer stator ( | 11-03-2011 |
20110291645 | MEASURING APPARATUS FOR THE DETECTION OF A RELATIVE MOVEMENT - A measuring apparatus for detecting a relative movement between at least one magnetic field sensor array integrated into a semiconductor chip and a transmitter for the sensor array is provided. The transmitter and the sensor array are exposed to the magnetic flux of a magnet. The transmitter has teeth that can be moved past the sensor array during the relative movement, or the transmitter has magnet poles that can be moved past the sensor array during the relative movement. The magnetic field sensor includes a differential magnetic field sensor which comprises a first measuring plate and a second measuring plate that are offset in relation to one another in a direction of the relative movement. The magnetic field sensor also includes a sensor element which is designed to measure the absolute magnetic field and comprises a third measuring plate that is arranged between the first measuring plate and the second measuring plate in the direction of the relative movement. | 12-01-2011 |
20110298447 | Motion Sensor, Method, and Computer-Readable Storage Medium Providing a Motion Sensor with a State Processor Having a Reduced Amount of State Chatter - A motion sensor has a state processor to identify states associated with a magnetic field signal provided by a magnetic field sensing element. The state processor includes a state peak logic module configured to generate states that have a reduced amount of state chatter. | 12-08-2011 |
20120001620 | MAGNETIC ANGLE SENSOR - A magnetic angle sensor comprises a semiconductor chip, at least two magnetic field concentrators of planar shape which are arranged on a surface of the semiconductor chip, and four Hall sensors. Each Hall sensor is assigned to one of the magnetic field concentrators and comprises a Hall element or a cluster of Hall elements. The Hall elements are integrated in the semiconductor chip and are arranged in the region of the edge of the assigned magnetic field concentrator where they are permeated by field lines of the magnetic field which extend approximately perpendicularly to the mentioned surface of the semiconductor chip in the region of the edge of the magnetic field concentrator. Two Hall sensors form a first pair of sensors for measuring a first component of the magnetic field and the two other Hall sensors form a second pair of sensors for measuring a second component of the magnetic field. Connecting lines which connect the Hall sensors which are arranged in the region of the edge of the same magnetic field concentrator run either parallel with respect to each other or form a single common line. | 01-05-2012 |
20120007589 | POSITION DETECTING APPARATUS - The present invention provides a single component implementing highly precise pulse detection for rotational or liner position detecting apparatuses for jog dials and mechanical products. Focusing on the fact that the phase difference between the magnetic fields in circumferential and radial directions generated by a magnetized ring is precisely 90 degrees, a position detecting apparatus of the present invention includes two Hall elements placed at a distance; a protective film provided on magnetic sensitive portions of the two Hall elements to cover the magnetic sensitive portions; a thin-film magnetic plate placed on the protective film to cover the magnetic sensitive portions of the two Hall elements; and further a processing circuit calculating the sum and difference of the signals from the two Hall elements to generate signals having an accurate phase difference of 90 degrees. The position detecting apparatus can therefore detect the rotation direction and precise rotation angle. | 01-12-2012 |
20120013327 | TWO-TERMINAL LINEAR SENSOR - A magnetic field sensor includes a linear magnetic field sensor to produce a voltage proportional to a sensed magnetic field and an interface having only two terminals for external connections. The two terminals of the interface include a power supply terminal and a ground terminal. The interface includes a voltage-controlled current generating device that is connected between the two terminals and is controlled by the voltage to provide a current signal that is proportional to the sensed magnetic field. | 01-19-2012 |
20120019234 | SENSOR ASSEMBLY - A sensor assembly includes a magnetic track having a plurality of magnetic poles separated by a plurality of pole junctions. The sensor assembly also includes a first magnetic sensor disposed proximate a high-resolution portion of the magnetic track and a second magnetic sensor disposed proximate a reference portion of the magnetic track. The second magnetic sensor spans adjacent pole junctions in the magnetic track. Each of the adjacent pole junctions includes a high-resolution segment corresponding with the high-resolution portion of the magnetic track and a reference segment corresponding with the reference portion of the magnetic track. The reference segment of each pole junction is one of offset and aligned with the corresponding high-resolution segment in each pole junction. | 01-26-2012 |
20120025809 | Control Device - A control device is provided configured to provide user control signals. The control device comprises a magnetic flux sensing unit configured to provide two-dimensional angular orientation information with respect to a magnetic field acting on the magnetic flux sensing unit, and the user control signals are dependent on the two-dimensional angular orientation information. The control device further comprises a magnet arrangement comprising at least two permanent magnets configured to generate the magnetic field. The magnet arrangement and the magnetic flux sensing unit are arranged to be reoriented relative to one another within a predetermined range of movement, and the at least two permanent magnets are arranged relative to the magnetic flux sensing unit such that the magnetic field experienced by the magnetic flux sensing unit is substantially uniform throughout the predetermined range of movement. | 02-02-2012 |
20120025810 | DEVICE FOR DETECTING THE POSITION OF A GEAR STEP SELECTOR LEVER AND MOTOR VEHICLE EQUIPPED WITH SAME - A device for detecting the position of a gear step selector lever ( | 02-02-2012 |
20120062216 | TORQUE INDEX SENSOR - The present disclosure relates to a torque index sensor configured to enhance productivity with excellent economic feasibility by simplifying a magnet structure of an index sensor unit, the torque index sensor connected to an input axis and an output axis, the torque index sensor comprising: a housing; an index magnet housed in the housing, connected to the output axis to rotate with the output axis and formed in the shape of a rectangle at a cross-sectional view; and a magnetic device secured to an interior of the housing to output a magnetization signal in response to rotation of the index magnet, such that the shape of the index magnet is simplified to a rectangle to enhance productivity and economic feasibility. | 03-15-2012 |
20120074930 | MOVING MAGNETIC FIELD GENERATING APPARATUS - A moving magnetic field generating apparatus includes a magnet array including magnets disposed at a first pitch such that N and S poles of adjacent magnets in the magnet array are alternated, and first and second magnetic pole piece arrays extending along the magnet array to interpose the magnet array therebetween with a gap from the magnet array. The first and second magnetic pole piece arrays are disposed with a predetermined phase difference therebetween. The first magnetic pole piece array includes first magnetic pole pieces disposed at a second pitch in an array and each having a length enough to face at least two adjacent magnets in the magnet array. The second magnetic pole piece array is configured similarly to the first magnetic pole piece array. One of the first and second magnetic pole piece arrays and the magnet array is relatively moved to the other at a predetermined speed. | 03-29-2012 |
20120092001 | METHOD AND DEVICE FOR DIAGNOSIS OF SENSOR FAULTS FOR DETERMINATION OF ANGULAR POSITION OF POLYPHASE ROTARY ELECTRICAL MACHINE - Disclosed is a method and device for diagnosis of functioning faults caused by the angular position measurement sensors of the rotor of a polyphase rotary electrical machine comprising a stator, in particular of the alternator-starter type. The diagnosis is obtained by carrying out direct measurements of pairs of sine and cosine signals determined on the basis of linear combinations of the polyphase signals provided by these sensors. This measurement therefore does not make it necessary to know the exact value of the speed of the machine. The diagnosis of functioning faults caused by the angular position measurement sensors requires only the execution of elementary logic operations, i.e. the determination of the “true” or “false” logic states of two inequality equations. | 04-19-2012 |
20120126795 | PUMP WITH ROTOR POSITION MEASUREMENT SYSTEM - A pump comprising an electrical motor drive ( | 05-24-2012 |
20120126796 | POSITION SENSOR AND LINEAR ACTUATOR - A linear magnetic position sensor may include a magnetic field generating unit having two permanent magnets for generating a magnetic field. A Hall sensor may be disposed in a region of the magnetic field forming a linear measuring section, wherein the Hall sensor and the magnetic field generating unit are linearly displaceable relative to one another along a longitudinal direction in order to position the Hall sensor within the measuring section. The permanent magnets may be polarized in a transverse direction running perpendicular to the longitudinal direction. The permanent magnets may be spaced apart from one another in the longitudinal direction. Each pole of one of the permanent magnets may be connected to a pole of the other permanent magnet via a magnetic conductor element. | 05-24-2012 |
20120187939 | ANGLE DETECTION APPARATUS - According to an embodiment of the invention, an angle detection apparatus detects the angle of a rotation axis of a rotating device to generate a first signal and a second signal perpendicular to the first signal using the angle detection unit. The first AD conversion unit receives the first signal to perform an analog-to-digital conversion of the first signal. The second AD conversion unit receives the second signal to perform an analog-to-digital conversion of the second signal. The first offset correction unit receives a third signal output from the first AD conversion unit to perform an offset correction of the third signal when the third signal is outside a predetermined range. The second offset correction unit receives a fourth signal output from the second AD conversion unit to perform an offset correction of the fourth signal when the fourth signal is outside the predetermined range. | 07-26-2012 |
20120206130 | Determining a motion range of a piston of a cylinder - Position detecting devices | 08-16-2012 |
20120217955 | Circular Vertical Hall Magnetic Field Sensing Element and Method With a Plurality of Continuous Output Signals - A circular vertical Hall (CVH) sensing element and an associated method provide a plurality of output signals from a respective plurality of vertical Hall elements in the CVH sensing element at the same time. | 08-30-2012 |
20120223699 | 360-DEGREE ANGLE SENSOR - This disclosure is directed to techniques for magnetic field angular position sensing. A device designed in accordance with this disclosure may include a magnetoresistive sensor configured to generate a signal indicative of an angular position of a magnetic field, the signal having an angular range of 180 degrees, a first polarity sensor configured to generate a signal indicative of a polarity of the magnetic field sensed from a first location, and a second polarity sensor configured to generate a signal indicative of a polarity of the magnetic field sensed from a second location different from the first location. | 09-06-2012 |
20120229123 | MAGNETIC RING ENCODING DEVICE FOR COMPOSITE SIGNALS - A magnetic ring encoding device for composite signals, which is disposed at an end of a rotary shaft of a rotary motor. The magnetic ring encoding device includes: a magnetic ring having a ring-shaped body section synchronously rotatable with the rotary shaft of the rotary motor, multiple magnetic poles being arranged on the body section at equal intervals; multiple Hall elements located and arranged around the body section at intervals, the Hall elements serving to sense magnetic field change that takes place when the magnetic poles pass through the Hall elements and output sensed signals according to the magnetic field change; and an adder for performing addition operation for the sensed signals output from the Hall elements. | 09-13-2012 |
20120242329 | DETECTION MODULE OF ROTATION SPINDLE - A rotation spindle detection module includes a magnet retainer that retains at least one precision magnet and is mounted to a rotation spindle; at least one Hall device that detects the precision magnet and is arranged at a fixed position adjacent to the magnet retainer; a circuit board that is coupled to the Hall device and forms a circuit to receive a detection signal from the Hall device. As such, components that are used to detect a rotation spindle, including a Hall device, a precision magnet, and a circuit board, are integrated in a modularized fashion so as to achieve the purposes of easy mounting of the detection module to the rotation spindle. | 09-27-2012 |
20120249124 | OMNIPOLAR MAGNETIC SWITCHES - Embodiments relate to omnipolar magnetic field switches. In one embodiment, omnipolar behavior is generated in a Hall effect switch by extracting the modulus of the electric signal generated by the Hall transducer and feeding it to a single high-precision comparator, without any sampling or additional processing steps. The modulus extraction and threshold evaluation can be done in parallel. | 10-04-2012 |
20120262155 | Magnetic Field Sensor That Provides an Output Signal Representative of an Angle of Rotation and a Speed of Rotation of a Target Object - A magnetic field sensor and a method used therein provide an output signal in angle units representative of an angle of rotation of a target of and also an output signal in speed units representative of a speed of rotation of the target object. A power control circuit can cycle a magnetic field sensor on and off in accordance with a sensed rotation speed of the object. | 10-18-2012 |
20120262156 | Machine With Relative Rotatable Members - The invention relates to a machine (R) comprising a first member ( | 10-18-2012 |
20120262157 | MAGNETIC SENSOR FOR DETERMINING THE POSITION AND ORIENTATION OF A TARGET - The invention relates to a magnetic sensor for determining the position of a part ( | 10-18-2012 |
20120286773 | HALL-EFFECT-BASED ANGULAR ORIENTATION SENSOR AND CORRESPONDING METHOD - The method for sensing an angular orientation of a magnetic field includes
| 11-15-2012 |
20120313623 | SYSTEM THAT OBTAINS A SWITCHING POINT WITH THE ENCODER IN A STATIC POSITION - A system including an encoder, multiple sensing elements and control logic. The encoder has a pole pitch and is configured to rotate in a direction of rotation. The multiple sensing elements are situated along the direction of rotation and span at least half the length of the pole pitch. The control logic is configured to receive signals from the multiple sensing elements based on the encoder in a static position and obtain a switching point based on the signals. | 12-13-2012 |
20120326706 | METHOD FOR DETERMINING THE SET POSITION OF AN ADJUSTMENT PART - An adjustment system and method is provided for determining a set position of a motor-driven adjustment part of a motor vehicle by a Hall sensor, which is arranged in a rotated magnetic field. The drive of the adjustment part is activated for a specified number of approaches of the adjustment part toward an end position. A counter is changed by a counting value upon each approach of the adjustment part toward the end position. A standardization drive to the end position is carried out when the specified number of approaches is reached, and each deactivation and/or activation of the Hall sensor is detected and the counter state of the counter is changed according to the number of deactivation and activation cycles. | 12-27-2012 |
20130015844 | HIGH-RESOLUTION NON-CONTACTING MULTI-TURN SENSING SYSTEMS AND METHODS - Disclosed are systems and methods for measuring multi-turn position of a shaft with high resolution and in a non-contact manner. In some embodiments, a multi-turn sensing apparatus can include a rotation counter configured to determine a number of turns made by a shaft, and an angular position sensor configured to measure an angular position of the shaft within a given turn. The number of turns can be determined with an M-bit resolution, and the angular position per turn can be measured with an N-bit resolution. Selected appropriately, the rotation counter can be configured to operate as a relatively low resolution; and yet the multi-turn sensing apparatus can maintain the N-bit per-turn angular resolution throughout the full range. Accordingly, the multi-turn sensing apparatus can have an effective resolution of M+N bits. | 01-17-2013 |
20130043863 | MAGNETIC POSITION SENSORS, SYSTEMS AND METHODS - Magnetic position sensors, systems and methods are disclosed. In an embodiment, a position sensing system includes a magnetic field source with a dipole moment in a direction along a z-axis; and a sensor module spaced apart from a center of the dipole moment a distance y0 along a y-axis and spaced apart a distance z0 from a center of the dipole moment along a z-axis, at least one of the magnetic field source or the sensor module configured to move relative to the other along a path in the y=y0 plane, the sensor module configured to determine a relative position of the magnetic field source to the sensor module with respect to the path from a ratio of a gradient dBz/dx to a gradient dBz/dy, where Bz is a magnetic field component associated with the permanent magnet, and where an x-axis, the y-axis and the z-axis are at right angles. | 02-21-2013 |
20130057257 | MAGNETIC FIELD SENSING ELEMENT COMBINING A CIRCULAR VERTICAL HALL MAGNETIC FIELD SENSING ELEMENT WITH A PLANAR HALL ELEMENT - A magnetic field sensor includes a circular vertical Hall (CVH) sensing element and at least one planar Hall element. The CVH sensing element has contacts arranged over a common implant region in a substrate. In some embodiments, the at least one planar Hall element is formed as a circular planar Hall (CPH) sensing element also having contacts disposed over the common implant region. A CPH sensing element and a method of fabricating the CPH sensing element are separately described. | 03-07-2013 |
20130057258 | POSITION SENSOR USING A MOVEABLE FERROMAGNETIC ELEMENT - The invention relates to a contactless magnetic sensor for detecting a linear or angular position, comprising a moveable ferromagnetic element ( | 03-07-2013 |
20130063133 | POSITION SENSOR - A position sensor for a transmission mode selector lever includes a magnet and three magnetic flux detection elements that detect magnetic flux of the magnet. A determination circuit determines an operation position of the transmission mode selector lever based on output levels of detection signals generated by the magnetic flux detection elements. The magnet includes first and second magnetized regions. The first and second magnetized regions are formed so that when the magnet is moved relative to the magnetic flux detection elements along a straight line, output levels of the detection signals generated by the magnetic flux detection elements change in accordance with a proportional relationship having a first or second gradient relative to the distance of the movement. The three detection elements are spaced apart from each other on a straight line that is parallel to the first and second straight lines. | 03-14-2013 |
20130063134 | ROTARY ARC POSITION SENSOR WITH LINEAR OUTPUT - A rotary position sensor includes a member with a shaft associated with the member such that movement of the member rotates the shaft. An arc-shaped permanent magnet is coupled to a periphery of the shaft for rotation therewith. First and second adjacent magnetic field concentrators define a gap there-between. Sensor structure is disposed in the gap. Upon movement of the member causing rotation of the shaft and magnet, the concentrators and sensor structure remain stationary, with the magnet providing a magnetic pole that changes the magnetic field in the gap. The sensor structure is constructed and arranged to respond to the changes in the magnetic field to identify a position of the member. | 03-14-2013 |
20130069635 | DISPLACEMENT DETECTION DEVICE, VEHICLE STEERING SYSTEM, AND MOTOR - A motor rotation angle sensor includes a plurality of Hall elements and a plurality of switches, each a which is able to interrupt supply of power for operating a corresponding one of these Hall elements. | 03-21-2013 |
20130088215 | POSITION DETECTOR - In a position detector utilizing a Hall effect, a magnet is disposed to move relative to a circuit board. A conductive element is printed on the circuit board. A control circuit is mounted on the circuit board and is connected to the conductive element through a position detection wiring. The control circuit supplies an electric current to the conductive element through the position detection wiring such that the electric current flows in the conductive element in a first direction, detects a potential difference in a second direction perpendicular to the first direction in the conductive element, and performs an operation according to a position of the magnet relative to the conductive element based on the potential difference detected. | 04-11-2013 |
20130099777 | METHOD FOR DETERMINING A DISTANCE AND AN INTEGRATED MAGNETIC FIELD MEASURING DEVICE - An integrated magnetic field measuring device is provided that includes a semiconductor body arranged on a metal substrate and having a first surface, and a plurality of metal surfaces formed on the surface, a first magnetic field sensor, formed in the semiconductor body and having a first sensor signal, and second magnetic field sensor having a second sensor signal, and a current-carrying first conductor. A third magnetic field sensor with a third sensor signal is formed in the semiconductor body. The first magnetic field sensor, the second magnetic field sensor, and the third magnetic field sensor have a substantially identical orientation to Earth's magnetic field and a different distance to the first conductor and the magnetic field of the first conductor simultaneously penetrates the first magnetic field sensor, the second magnetic field sensor, and the third magnetic field sensor. | 04-25-2013 |
20130106404 | POSITION DETECTING DEVICE | 05-02-2013 |
20130113465 | MULTIPLE FUNCTION CONTROL KNOB ASSEMBLY - A multiple function control knob assembly that includes a knob, a three dimensional Hall effect sensor, a magnet, and a processor. The knob is configured to be movably rotated about an axis and movably positioned along the axis. The three dimensional Hall effect sensor is located proximate to the axis. The magnet is fixedly coupled to the knob so a magnet direction of the magnet relative to the sensor can be detected by the sensor. The processor is configured to receive a signal from the sensor indicative of the magnet direction, and determine an angular direction of the magnet about the axis and a linear position of the magnet along the axis based on the signal. | 05-09-2013 |
20130113466 | PORTABLE TERMINAL DEVICE AND POSITION DETECTION METHOD USED THEREIN - A portable terminal device is disclosed that includes a movable part having a display part; an arm part supporting the movable part so that the movable part is rotatable at least ±90° with reference to a rotation center position around a rotation center; and a position detection part detecting the position of the movable part relative to the arm part. The position detection part includes magnets, magnetic sensors detecting the magnetic fields thereof, and a calculation part determining the position of the movable part based on sensor outputs. The magnets are provided in one of the arm part and the movable part so as to be 90° apart from each other around the rotation center. The magnetic sensors are provided in the other one of the arm part and the movable part so as to oppose the corresponding magnets when the movable part is positioned at the rotation center position. | 05-09-2013 |
20130147466 | APPARATUS AND METHOD FOR CONTROLLING ACTUATOR THAT CONTROLS OPENING AND CLOSING OF INTAKE VALVE - Disclosed is an apparatus for controlling an actuator that controls opening and closing of an intake valve. The apparatus includes an input shaft connected to a motor and an output shaft rotatable in conjunction with the input shaft, a magnet unit including a first magnet and a second magnet provided on concentric circles, the first magnet provided such that different poles are alternately arranged at an angle of 90° and the second magnet provided such that different poles are alternately arranged at a predetermined angle, and a control unit, wherein a change in polarities of the first and second magnets are sensed. | 06-13-2013 |
20130154618 | INTEGRATED MAGNETIC FIELD SENSOR AND METHOD FOR A MEASUREMENT OF THE POSITION OF A FERROMAGNETIC WORKPIECE WITH AN INTEGRATED MAGNETIC FIELD SENSOR - An integrated magnetic field sensor, having a semiconductor body with a surface and a rear surface, and a metal carrier, with a front and a rear, wherein the rear of the semiconductor body is connected to the front of the metal carrier in a non-positive manner, and a Hall sensor, embodied on the surface of the semiconductor body, with a main extension surface, and a magnet with a first magnetic pole embodied along a first surface, which first magnetic pole has a central axis embodied in a perpendicular manner on the first surface, wherein the metal carrier, the magnet and the semiconductor body are arranged in a common housing and precisely one or at least one Hall sensor is arranged in the housing. | 06-20-2013 |
20130154619 | SYSTEM FOR POSITIONAL MEASUREMENT IN A COUPLING DEVICE - The present invention relates to a system (S) for measuring the position of a coupling member ( | 06-20-2013 |
20130200883 | MAGNETIC FIELD SENSOR - A magnetic field sensor for a position transducer having processing and control electronics for outputtomg signals of the magnetic field sensor and a permanent magnet exciter array has at least three Hall elements for registering the magnetic field direction of the permanent magnet array. The Hall elements are formed and arranged on a semiconductor IC and spaced in such a manner that their active surfaces lie in a common plane parallel to the surface of the semiconductor IC. A single deflecting body made of ferromagnetic material is is produced and installed as an independent component separate from the semiconductor IC, and the mutual distances of the Hall elements on the surface of the semiconductor IC comprise a multiple of the maximum dimensional extent of the Hall elements. | 08-08-2013 |
20130221950 | METHOD AND MEASUREMENT ARRANGEMENT FOR MEASURING MECHANICAL STRESSES IN FERROMAGNETIC WORKPIECES - A method and measurement arrangement are disclosed for measuring mechanical stress in ferromagnetic workpieces, in which a ferromagnetic workpiece impresses a magnetic field and a magnetic field value is measured and analyzed with respect to the mechanical stress. The method includes at least two exciters of the magnetic field arranged along a longitudinal extension of the workpiece such that a section of the workpiece is located between the two exciters of the magnetic field. A direction-dependent magnetic field sensor is arranged at a position along the longitudinal extension of the workpiece, which can be at half the distance between the two exciters of the magnetic field. With the direction-dependent magnetic field sensor, the change in position and/or the direction of a dividing line between the north and south poles of the impressed magnetic field is determined and analyzed. | 08-29-2013 |
20130265036 | MAGNETIC FIELD SENSOR HAVING MULTIPLE SENSING ELEMENTS FOR MISALIGNMENT DETECTION AND CORRECTION IN CURRENT SENSING AND OTHER APPLICATIONS - A sensor with multiple magnetic field sensing elements for use in current sensing and other applications is presented. The sensor includes an arrangement of two or more magnetic field sensing elements to sense magnetic field associated with a target. The sensor further includes circuitry to generate a sensor output signal based on sensing of at least one of the magnetic field sensing elements of the arrangement. Also included is a programmable misalignment adjustment block to control the circuitry to generate the output signal with compensation for misalignment between the sensor and the target. The programmable misalignment adjustment block can be programmed to select measurement of one of the two or more magnetic field sensing elements, or alternatively, a mathematical combination of measurements of the two or more magnetic field sensing elements, for generating the sensor output signal when a test of the sensor indicates a misalignment. | 10-10-2013 |
20130265037 | ANGLE SENSOR WITH MISALIGNMENT DETECTION AND CORRECTION - An angle sensor to provide sensor-to-magnet misalignment detection and correction capability in rotation angle measurement applications is presented. The angle sensor has magnetic field sensing elements to sense magnetic field associated with a rotating magnet. The angle sensor includes circuitry to generate signals based on the sensing by the sensing elements. The signals provide information that can be combined according to an error function to provide misalignment detection. The angle sensor can be used with or can be incorporated in an angle measurement device that employs a processing unit to produce a rotation angle value. In one embodiment, the processing unit is configured to implement the error function and correct the angle value for detected misalignment. In another embodiment, the error function is performed by a programming device and detected misalignment is corrected through mechanical adjustment of sensor-to-magnet position. | 10-10-2013 |
20130293220 | METHODS AND APPARATUS FOR MAGNETIC SENSORS HAVING HIGHLY UNIFORM MAGNETIC FIELDS - Methods and apparatus for a magnetic sensor including an elliptical magnet to generate substantially circular concentric zones of similar flux density in a plane over and parallel to a surface of the magnet. The sensor can include a sensing element disposed a selected distance from the magnet and a substrate containing circuitry to process a signal from the sensing element to provide a sensor output. | 11-07-2013 |
20130293221 | OUTPUT SWITCHING SYSTEMS AND METHODS FOR MAGNETIC FIELD SENSORS - Embodiments relate to predictive output switching threshold determination systems and methods for sensors, for example magnetic field sensors. In embodiments, at least one individual switching threshold is determined predictively, rather than reactively, for each tooth or pole of a ferromagnetic tooth or pole wheel, respectively. For example, in one embodiment, the number of teeth or poles is programmed, and an optimal threshold for each tooth or pole is determined during a rotation of the wheel. The determined optimal threshold for each tooth is then used for that tooth in at least one subsequent rotation of the wheel, with calibration optionally taking place in future subsequent rotations. Thus, in embodiments, thresholds are predictive for each individual tooth or pole rather than reactive to an adjacent tooth or pole. | 11-07-2013 |
20130300403 | GEAR ABSOLUTE POSITION SENSOR FOR MANUAL TRANSMISSIONS - The present invention provides a gear absolute position sensor assembly (GAPS) that senses the current absolute, position of the shift lever of a manual transmission. The sensor assembly provides data to an associated electronic controller such as an engine control module (ECM) regarding the current position of the shift lever, such as an engaged gear. The sensor assembly preferably comprises at least one Hall effect or other type of magnetic field (proximity) sensors in combination with an application specific integrated circuit (ASIC) which is supplied with data from the sensors, decodes the output of the sensors and provides an output identifying a specific engaged gear or neutral for use by vehicle or engine management electronics. The sensors are mounted proximate the shift linkage at a location where they can sense both rotation and translation. | 11-14-2013 |
20130307529 | MEASURING DEVICE - A measuring device | 11-21-2013 |
20130314076 | Retractable Assembly - A retractable assembly for immersion-, flow- and annex-measuring systems in analytical process technology for measuring at least one measured variable of a medium in a process containment, comprising an essentially cylindrical housing having a housing interior; an immersion tube, which is axially movable between a retracted service position in the housing and a process position extended from the housing. In the service position, the immersion tube is positioned in the housing interior; a closure element on an end region of the immersion tube facing the medium for sealing off the housing interior from the process containment when the immersion tube is located in the service position, and a proximity detector in or on the end region of the housing facing the medium for detecting the closure element in the service position. | 11-28-2013 |
20130320967 | ROTATION ANGLE DETECTION DEVICE - A rotation angle detection device includes a magnetic field generation section, a yoke, and a magnetism detection section. The magnetic field generation section has a first end portion and a second end portion. The yoke has such a tube shape that the magnetic field generation section and a rotation axis of a rotating body are located therein. The yoke has a gap at a part in a circumferential direction in a cross section perpendicular to the rotation axis. The magnetism detection section is disposed in the gap and outputs an electrical signal in accordance with a magnetic field strength in the gap. The magnetic field generation section is disposed in such a manner that a magnetic force line passing through the magnetic field generation section passes through the rotation axis regardless of the rotation angle of the rotating body and the rotation axis passes through the first end portion. | 12-05-2013 |
20130342190 | Through Shaft Rotary Position Sensor - A rotary shaft sensor assembly includes 2 arc section magnets extending around the outer surface of a rotatable through shaft, arranged some distance from the shaft to produce a field, constant in strength and direction over a sufficiently large area. A sensor which measures changes in the direction of the magnetic flux generated by the magnets in response to rotation of the shaft is located anywhere in the field of constant strength and direction, specifically not needing to be located at the axis of rotation of the shaft. Optionally another such sensor can be mounted anywhere in the field at right angles to the first to allow for sensing over the full range of rotation of the shaft. | 12-26-2013 |
20140021941 | MAGNETIC FIELD SENSOR - A magnetic field sensor assembly for measuring an angular direction of a sensed magnetic field relative to the assembly is disclosed. The sensor assembly includes a sensor of a first type configured to sense an orientation of the sensed magnetic field, a sensor of a second type configured to measure an orientation and a direction of the sensed magnetic field and processing circuitry connected to each of the magnetic field sensors. The processing circuitry being configured to process output signals from the sensor of the first type to determine an uncorrected sensed magnetic field angle and to apply an offset angle to the uncorrected magnetic field angle dependent on a logical combination of signs of output signals from the sensors of the first and second types. | 01-23-2014 |
20140035563 | APPARATUS AND METHOD FOR DETECTING A POSITION OF AN ACTUATOR PISTON - Apparatus and method for detecting a position of an actuator piston driving a valve pin in an injection molding system. The apparatus includes an actuator housing having a body portion, surrounding an axial bore, of a substantially non-magnetic and/or magnetically permeable material, a piston, movable within the axial bore for driving a valve pin, the piston including a magnetic member generating a magnetic field such that axial movement of the piston in the bore modifies the magnetic field according to the position of the piston relative to a detection position, and a magnetic field detector attached to an exterior surface of the body portion at the detection position for detecting the magnetic field associated with the position of the piston and generating an output signal determined by the piston position. | 02-06-2014 |
20140043018 | SWITCHING VALVE FOR LIQUID CHROMATOGRAPHY - The invention relates to a switching valve for liquid chromatography having a stator in which multiple ports are formed. Each port is formed by in each case one duct which is connected at one end to in each case one connection port and which, at the other end, has a predetermined port opening cross section at a stator face surface of the stator. The switching valve includes a rotor which has a rotor face surface which interacts with the stator face surface and in which are formed at least one or more grooves. Depending on the rotational position of the rotor with respect to the stator, in at least one predetermined switching position, the switching valve connects respective predetermined port opening cross sections in a pressure-tight manner. The switching valve further includes a drive device for driving the rotor in rotation, and a device for detecting the rotational position of the rotor, which device generates a signal corresponding to the absolute or relative position of the rotor. | 02-13-2014 |
20140055126 | SYSTEMS AND METHODS FOR ROTOR ANGLE MEASUREMENT IN AN ELECTRICAL GENERATOR - Disclosed herein are systems and methods for rotor angle measurement in an electrical generator. According to one embodiment, an intelligent electronic device may comprise control logic configured to generate a reference signal and to generate a rotational position signal based upon an indicator of a rotational position of a rotor in an electrical generator. The control logic may further be configured to detect a relative shift between the reference signal and the rotational position signal and to determine the rotational position of the rotor based upon the relative shift. A power angle of the electrical generator may be calculated based upon the rotational position of the rotor. According to certain embodiments, the control logic may further be configured to generate a control instruction to reduce the power angle in response to determining that the power angle exceeds a threshold. | 02-27-2014 |
20140062462 | Sensor Mounting in an Implantable Blood Pump - Techniques for mounting a sensor are disclosed. In some implementations, a molded interconnect device carries a sensor for transducing a position of a rotor of the implantable blood pump. The molded interconnect device includes one or more integrated electronic circuit traces configured to electrically connect the Hall sensor with a printed circuit board of the implantable blood pump, and the molded interconnect device is configured to be mounted to the printed circuit board. | 03-06-2014 |
20140070796 | HALL-EFFECT-BASED ANGULAR ORIENTATION SENSOR AND CORRESPONDING METHODS AND DEVICES - A sensor for sensing an angular orientation of a magnetic field of a magnet includes: N≧2 Hall effect devices (HD1, HD2, . . . ), each having a detection direction and including a first and a second pair of connectors, wherein, in presence of the magnetic field, a flow of an electric current between the connectors of the first pair allows to pick up a Hall voltage between the connectors of the second pair induced by the magnetic field, unless a magnetic field component of the magnetic field along the detection direction is zero, wherein the N Hall effect devices are aligned such that they have a common detection direction lying along an axis; a filtering-or-resonating unit (F) comprising an input and an output, wherein a signal outputted from the output is referred to as filtered signal. | 03-13-2014 |
20140084903 | Apparatus and Method for Providing an Output Signal Indicative of a Speed of Rotation and a Direction of Rotation of a Ferromagnetic Object - An apparatus and a method provide an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object capable of rotating. A variety of signal formats of the output signal are described. | 03-27-2014 |
20140084904 | Apparatus and Method for Providing an Output Signal Indicative of a Speed of Rotation and a Direction of Rotation of a Ferromagnetic Object - An apparatus and a method provide an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object capable of rotating. A variety of signal formats of the output signal are described. | 03-27-2014 |
20140103911 | ROTATION ANGLE DETECTION DEVICE - A rotation angle detection device has a first yoke, an inside surface of which is formed of a first concave curved surface and a second concave curved surface, and a second yoke, an inside surface of which is formed of a third concave curved surface and a fourth concave curved surface. Each concave curved surface does not extend in a second direction but extends toward a first flat surface or a second flat surface in an inclined manner. The first flat surface and the second flat surface face each other sandwiching a Hall element therebetween and are parallel to each other. The magnetic flux, which leaks from the first yoke into an inside space and reaches the second yoke, flows in the second direction over a wider area around the Hall element. | 04-17-2014 |
20140103912 | STEERING ANGLE SENSOR FOR MOTOR VEHICLES - A steering angle sensor for motor vehicles for determining the steering angle of a steering element of a steering wheel assembly, which is rotatable during a steering movement is provided. The steering angle sensor comprises a rotatably mounted drive element which during a rotary movement of the steering element likewise performs a rotary movement, and a rotatably mounted driven element which is in engagement with the drive element and is driven by the same The steering angle is determined by detecting the rotary movement and/or the angle of rotation of the driven element. The drive element and/or the driven element include elastic means via which the drive element and the driven element are braced against each other. | 04-17-2014 |
20140111191 | "SENSOR ARRANGEMENT, SENSOR BEARING AND METHOD FOR PRODUCING A SENSOR ARRANGEMENT" - The invention relates to a sensor arrangement for use in a sensor bearing with a magnetic ring ( | 04-24-2014 |
20140152296 | Rotary Position Sensor - A sensor assembly for sensing a movable object which, in one embodiment, includes a housing defining an interior cavity. A rotor is retained in the cavity. The rotor defines a central bore and a magnet is mounted in an off-center pocket defined by the rotor. The rotor is coupled to the shaft of the movable object whose position is to be measured. A sensor is also retained in the cavity in a relationship at least partially overlying the magnet and adapted to sense at least the direction of the magnetic field generated by the magnet to generate an electrical signal indicative of the position of the movable object. In another embodiment, the rotor and sensor are mounted in separate interior housing cavities separated by an interior housing wall. | 06-05-2014 |
20140167742 | Magnetic Sensing Device - A magnetic sensing device including a U-shaped magnet with a pair of legs and a base defining a first interior channel and a distal plane. A sensor assembly in the first interior channel includes a sensor that extends above the distal plane. The magnet generates a first region of low or no flux above the distal plane in a first position of the magnet, a second region of low or no magnetic flux in the interior channel in a second position of the magnet, and a third region of magnetic flux above the distal plane in the second position of the magnet which causes the sensor to activate a control signal. The base includes steps and a second interior channel that opens into the first interior channel. | 06-19-2014 |
20140167743 | MOTOR - A motor includes a rotating shaft, a rotor that surrounds the rotating shaft, rotates along with the rotating shaft, and includes a drive magnet, and a sensing unit that surrounds the rotating shaft, is disposed over the rotor, and detects rotation of the rotor, wherein the sensing unit includes a sensing plate that includes a plurality of holes that are formed along with an edge of the sensing plate, a sensing magnet that is mounted on the sensing plate and is disposed closer to the rotating shaft than the plurality of holes, a first sensor that is disposed over the sensing plate and detects a change in the sensing plate, and a second sensor that is disposed over the sensing magnet and detects a change in the sensing magnet. | 06-19-2014 |
20140176125 | Circuits and Methods for Processing Signals Generated by a Circular Vertical Hall (CVH) Sensing Element in the Presence of a Multi-Pole Magnet - A magnetic field sensor has a circular vertical Hall (CVH) sensing element with a plurality of vertical Hall elements disposed over a common implant region in a substrate. The plurality of vertical Hall elements is disposed in an x-y plane. The magnetic field sensor is responsive to a magnetic field generated by a multi-pole magnet having a plurality of north poles and also a plurality of south poles arranged in a plane parallel to the x-y plane, and, in some embodiments, arranged in the x-y plane. A corresponding method is also described. | 06-26-2014 |
20140176126 | Magnetic Field Sensor Arrangements and Associated Methods - Magnetic field sensor arrangements and methods provide a magnetic field sensor positioned proximate to a magnet with an axis of sensitivity aligned relative to the magnet in orientations that provide a good sensitivity and a mechanical difference from other arrangements. | 06-26-2014 |
20140184201 | POSITION DETECTOR - A position detector provides a wide dynamic range for detecting a magnetic flux density. The position detector has a magnetic flux detector with a Hall IC disposed within a gap between first and second magnetic flux transmission parts that allow rotation of the Hall IC relative to a rotating body for outputting a signal reflecting a passing magnetic flux density. First and second magnetic flux collectors sandwich the Hall IC in a facing direction that matches a facing direction of the first and second magnetic flux transmission parts. The first and second magnetic flux collectors have an area size relationship such that spill magnetic flux flows to the Hall IC in a concentrated manner. Thus, the dynamic range detected by the magnetic flux density detector is widened and a position detection accuracy of the position detector is improved. | 07-03-2014 |
20140197818 | POSITION MEASUREMENT USING A VARIABLE FLUX COLLECTOR - A magnetically-based position sensor. The sensor includes a magnet assembly that moves along a path, a common collector, one or more magnetic sensing elements, a first variable collector, and a second variable collector. The one or more magnetic sensing elements are coupled to the common collector. The first and second variable collectors are coupled to one of the one or more magnetic sensors and are configured to collect a magnetic field. The first and second variable collectors are positioned to transmit some of the magnetic flux generated by the magnet assembly as the magnet assembly moves along the path. The first variable collector and the second variable collector have a geometry and orientation such that the flux collected by the first and second variable collectors varies as the magnet moves along the path. | 07-17-2014 |
20140210456 | HITCH ANGLE SENSOR ASSEMBLY - In one embodiment, a hitch angle sensor assembly includes a spacer fixed between a hitch ball and a mounting surface on a vehicle. An element is rotatably coupled with the spacer about a vertical axis defined by the hitch ball, and connecting member secures the element to a trailer. A hall sensor is coupled with the spacer and senses a magnetic portion of the element to determine a hitch angle between the vehicle and trailer. This and other embodiments of the hitch angle sensor assembly may be used independently or in combination with other hitch angle sensors or systems to estimate the hitch angle between the vehicle and trailer, which may be advantageously used for operation of the vehicle with a trailer backup assist system. | 07-31-2014 |
20140266157 | POSITION MEASUREMENT USING ANGLED COLLECTORS - A magnetically-based position sensor. The sensor includes a magnet, a first collector, a second collector, and a magnetic sensing element. The magnet has at least two poles, and moves along a path. The first collector has a first end and a second end and is configured to collect a magnetic flux. In addition, the first collector is positioned at an angle relative to an axis running parallel to the path and perpendicular to the magnet. The second collector is configured to collect a magnetic flux, and is positioned at an angle relative to the axis running parallel to the path and perpendicular to the magnet, and parallel to the first collector. The magnetic sensing element is coupled to the first and second collectors. A magnetic flux is collected by the first and second collectors, and varies as the magnet moves along the path such that the magnetic flux collected by the first and second collectors indicates a position of the magnet along the path. | 09-18-2014 |
20140266158 | Magnetic Angle Position Sensor - In an embodiment, a method may be used to measure a plurality of positions associated with a plurality of magnets based on, for example, a magnetic angle of the magnets. The method may include various acts that may involve, for example, measuring magnetic field components associated with the plurality of magnets. In addition, the acts may include identifying a first angle and a second angle based on the measured magnetic field components. The identified first and second angles may be used to identify a position of a first magnet of the plurality of magnets and a second magnet of the plurality of magnets. | 09-18-2014 |
20140266159 | HIGH TEMPERATURE HALL SENSOR FOR MAGNETIC POSITION SENSING - A position sensor comprises a group III-nitride Hall effect sensor arranged to measure magnetic field from a magnet wherein the group III-nitride Hall effect sensor and the magnet are arranged to move relative to one another in response to movement of an element whose motion is to be monitored. The electrically conductive layer of the group III-nitride Hall effect sensor may comprise a two-dimensional electron gas (2DEG) defined by an Al | 09-18-2014 |
20140285184 | APPARATUS FOR MEASURING DISPLACEMENT - An apparatus for measuring displacement is disclosed. The disclosed displacement measurement apparatus may include a magnet unit having magnet sub-units arranged repeatedly in a particular pitch (p) to generate a sine-wave magnetic flux density; a sensor unit including a sensor array for measuring the sine-wave magnetic flux density; and a measurement part configured to measure a displacement of the magnet unit and the sensor unit displaced relatively to each other, based on the measured value of the sine-wave magnetic flux density, where the sensor array comprises two or more sensors arranged separated by a gap of p/k in-between (where k is 2 | 09-25-2014 |
20140306692 | INDEPENDENT HALL EFFECT SENSOR - A sensor system for detecting at least one of a speed and a position of a rotatable member. The sensor system includes a high-resolution sensor circuit including a plurality of Hall effect sensors and at least one independent Hall effect sensor, wherein the independent Hall effect sensor includes at least one of a power supply line, a ground line, and an output line, none of which are connected to the high-resolution sensor circuit. | 10-16-2014 |
20140320113 | SENSOR - Provided is a sensor capable of holding a sensing element at a position of good sensitivity without requiring filling of the case with resin. The sensor includes a sensing element, a case accommodating the sensing element and having a detecting face for the sensing element in an outer face thereof, a holder accommodated inside the case together with the sensing element and pressing the sensing element toward the detecting face and a cable electrically connected to the sensing element. At least one of the holder and the case includes a contact portion deformable by a pressing force generated when the sensing element is pressed toward the detecting face. | 10-30-2014 |
20140340077 | SENSOR ASSEMBLY - A method of determining a position on a magnetic track of an encoder includes providing a group of magnetic pole pairs that forms a portion of the magnetic track, recording a relative position within a first magnetic pole pair in the group using a first magnetic sensor proximate a high-resolution portion of the magnetic track, detecting adjacent pole junctions within the group of magnetic pole pairs with a second magnetic sensor positioned proximate a reference portion of the magnetic track, correlating the adjacent pole junctions with the first magnetic pole pair to determine a relative position of the first magnetic pole pair within the group, and calculating a local absolute position within the group using the relative position within the first magnetic pole pair and the relative position of the first magnetic pole pair within the group. | 11-20-2014 |
20140375306 | NON-CONTACT SHIFT LEVER POSITION DETECTOR AND HEALTH STATUS MONITORING SYSTEM - A non-contact shift lever position detector includes a housing, a gear position shift lever, a magnet, a plurality of magnetic sensors, and a processor. The gear position shift lever is disposed partially within the housing and is moveable to at least a first position, a second position, and a third position. The magnet is disposed within the housing, and is coupled to the gear position shift lever and is movable therewith. The magnetic sensors are fixedly disposed within the housing and each magnetic sensor is spaced apart from the magnet and is configured to supply an output voltage representative of its proximity to the magnet. The processor is coupled to receive the output voltage supplied from each of the magnetic sensors and is configured, upon receipt thereof, to determine when the gear position shift lever is in the first position, the second position, and the third position. | 12-25-2014 |
20150008904 | ABSOLUTE POSITIONS DETECTORS - Example apparatus for absolute position detection are disclosed. An example apparatus includes a housing and digit gears coupled to the housing to rotate about respective parallel axes. Each digit gear has a first portion including a first set of teeth disposed about an entire circumference of the first portion and a second portion including a second set of teeth disposed about only a portion of a circumference of the second portion. Each digit gear is to correspond to a respective digit in a code representing an absolute position of a shaft. A respective idler gear between each adjacent pair of the digit gears is to be intermeshed with the first set of teeth of one of the digit gears and the second set of teeth of the other one of the digit gears. | 01-08-2015 |
20150022186 | ANGLE SENSORS, SYSTEMS AND METHODS - Embodiments relate to magnetic field angle sensors, including off-axis and on-axis sensors. In an embodiment, a magnetic field angle sensor comprises two sensor units, and each sensor unit comprises two sensor elements. The sensor units are spaced apart from one another and arranged proximate a magnet, wherein the two sensor elements of each sensor unit are responsive to the same magnetic field component induced by a magnet coupled to a shaft as the shaft rotates. In each sensor unit, a sum and a difference of the output signals of the two sensor elements can be calculated to determine a coarse estimation of a rotation angle, and a more refined estimation can be obtained by combining the coarse estimations of each sensor unit. In embodiment, the magnetic field angle sensor comprises a control unit or other circuitry to carry out this combining. | 01-22-2015 |
20150022187 | Arrangements for Magnetic Field Sensors That Act as Tooth Detectors - A variety of magnetic field sensor arrangements provide so-called “tooth detectors” using a simple low-cost magnet. | 01-22-2015 |
20150028856 | System and Method for Converting Output of Sensors to Absolute Angular Position of a Rotating Member - A sensor system determines an absolute angular position of a to-be-sensed rotating member. The sensor system may include a rotor with a first magnet coupled to the rotor and a shaft having threads thereon. The sensor system may further include a sleeve with a second magnet and threads complementary to the threads of a shaft. The sleeve may be configured to travel axially along the shaft as a function of rotation of the rotor. The sensor system may also include a first transducer configured to sense orientation of the first magnet and at least one second transducer configured to sense a location of the second magnet along the shaft. Through use of the sensor system, an absolute number of turns and, consequently absolute angular position, of the rotating member can be determined. | 01-29-2015 |
20150035517 | VEHICLE INSTRUMENT PANEL WITH MAGNET EQUIPPED POINTER - A vehicle instrument panel assembly configured to determine an orientation angle of a stepper motor actuated pointer of the assembly. The assembly includes a pointer, a stepper motor, a magnet, and a sensor. The pointer is movable about an axis to point to indicia on a display surface of the assembly. The stepper motor is coupled to the pointer via a reduction gear arrangement. The magnet is fixedly coupled to the pointer such that a magnetic field direction generated by the magnet corresponds to an angle of the pointer. The sensor is configured to determine the magnetic field direction of the magnet and output a signal indicative of the angle of the pointer. | 02-05-2015 |
20150042320 | Systems and Methods for Computing a Position of a Magnetic Target - Systems and methods for sensing position of a magnetic target are disclosed. In embodiments, three magnetic field sensing elements are arranged equidistantly from each other to define a plane and a central axis perpendicular to the plane. The magnetic field sensing elements are configured to generate a respective output signal representing proximity of a magnetic target that is proximate to the central axis and capable of moving relative to the central axis. A processor circuit is coupled to receive output signals from each of the sensors and configured to calculate a position of the magnetic target relative to the plane. | 02-12-2015 |
20150048816 | DEVICE FOR THE DETECTION OF THE P, R, N, D, M+, M AND M- POSITIONS OF A CONTROL LEVER OF A GEARBOX OF AN AUTOMOTIVE VEHICLE - A device is mounted with a capability for angular movement in a mounting unit, the movement being detected by an element that is able to send electrical signals within a processing unit. The element consist of a single 2D Hall-effect sensor able to measure the rotations of the magnetic field, the sensor being mounted in close proximity to a dual magnet to measure two rotations of the lever in two planes, each corresponding to the P, R, N, D and M+, M and M− positions. | 02-19-2015 |
20150061648 | METHOD OF SENSING SLIDING BY HALL SENSOR AND SENSING SYSTEM USING THE SAME - A method of sensing a sliding by a sensor including grouping one or more Hall elements into one or more groups, measuring magnetic field strength generated by a magnetic field source, and comparing the magnetic field strength at the one or more Hall elements to determine whether a horizontal sliding occurs. | 03-05-2015 |
20150061649 | MOVING MAGNETIC FIELD GENERATING APPARATUS - A moving magnetic field generating apparatus includes a magnet array including magnets disposed at a first pitch such that N and S poles of adjacent magnets in the magnet array are alternated, and first and second magnetic pole piece arrays extending along the magnet array to interpose the magnet array therebetween with a gap from the magnet array. The first and second magnetic pole piece arrays are disposed with a predetermined phase difference therebetween. The first magnetic pole piece array includes first magnetic pole pieces disposed at a second pitch in an array and each having a length enough to face at least two adjacent magnets in the magnet array. The second magnetic pole piece array is configured similarly to the first magnetic pole piece array. One of the first and second magnetic pole piece arrays and the magnet array is relatively moved to the other at a predetermined speed. | 03-05-2015 |
20150070001 | HIGH RESOLUTION ABSOLUTE ENCODER - The device to measure the absolute rotation angle of a rotating shaft includes a rotating disc, fixed to the shaft. A group of permanent magnets of different sizes and polarities is disposed on a circular track. Further, a group of Hall sensors, fixed to a static part of the device, are disposed on a circular path, in proximity of the rotating disc magnets tracks, and generate electric signals proportional to the strength of the magnetic field produced by the magnets in proximity. The signs of these electric signals are used to calculate a code characteristic of a low resolution absolute angular position. Two analog signals are associated to the obtained code, according to a pre-defined table. The associated analog signal having the closest value to zero is used as an entry to a pre-recorded table containing the correspondent angular position of the shaft. | 03-12-2015 |
20150070002 | Magnetic Field Orientation Sensor and Angular Position Sensor Using Same - A magnetic field sensor structure having a number of inner, outer and intermediate electrodes, arranged in a particular manner, such that groups of four electrodes can be used to form horizontal Hall elements, whereby neighboring Hall elements “share” one of the two readout electrodes. Multiple Hall elements may be biased and readout simultaneously. A modulated or unmodulated readout-technique may be used. Integrated magnetic concentrator may be added to the structure. The number of Hall elements may be odd or even. The structure can be used e.g. to measure the magnetic field of a 2-pole, 4-pole or 6-pole ring or disk magnet. | 03-12-2015 |
20150077092 | MAGNETIC ENCODER APPARATUS - A magnetic encoder apparatus is presented that includes a plurality of magnetic sensor elements (e.g. Hall sensors) for reading an associated magnetic scale that produces a periodically repeating magnetic pattern. The plurality of magnetic sensor elements produce a plurality of sensor signals and an analyzer is provided for analyzing the plurality of sensor signals to provide a measure of the position of the magnetic sensor elements relative to the associated magnetic scale. The analyzer is arranged to use the plurality of sensor signals to assess the period of the periodically repeating magnetic pattern sensed by the plurality of magnetic sensor elements. In this manner, the requirement to carefully match the period of the sensor elements with the periodically repeating magnetic pattern of the associated magnetic scale is avoided. | 03-19-2015 |
20150084619 | DISPLACEMENT SENSOR FOR CONTACTLESSLY MEASURING A POSITION BY MEANS OF A PLURALITY OF MAGNETIC FIELD SENSORS ARRANGED IN SERIES - The present invention relates to a displacement sensor for contactlessly measuring a position of a magnet relative to a reference point. The displacement sensor comprises the magnet which can be displaced along a movement axis, a plurality of magnetic field sensors which are arranged in series and which are arranged parallel with the movement axis of the magnet and a calculation unit for forming a position signal which indicates the position of the magnet relative to the reference point. The plurality of magnetic field sensors which are arranged in series are arranged in such a manner that the displacement measurement ranges of adjacent magnetic field sensors overlap in an overlap range. The calculation unit is constructed in such a manner that, if the position of the magnet is contained in an overlap range, it forms the position signal on the basis of output signals which are output by the magnetic field sensors whose displacement measurement ranges overlap in the overlap range; and, if the position of the magnet is not contained in an overlap range, it forms the position signal on the basis of the output signal which is output by the magnetic field sensor, in the displacement measurement range of which the magnet is located. The overlap range between two displacement measurement ranges of adjacent magnetic field sensors is selected in such a manner that the total error of the position signal formed by the calculation unit in that overlap range is smaller than a maximum tolerable error. | 03-26-2015 |
20150084620 | MAGNETIC SENSOR - Provided is a magnetic sensor capable of identifying an individual having a high offset voltage, which is a cause of an initial defect in magnetic characteristics, and changes over time. A cross-transmission switch is provided in a changeover switch circuit which transmits to an amplifier circuit a differential signal voltage output from a Hall element, and the cross-transmission switch cross-transmits a signal in any one of a first period and a second period during which a current flowing into the Hall element is switched by a control signal from a control circuit, to thereby determine and identify a magnitude of an offset voltage. | 03-26-2015 |
20150123651 | POSITION-INDICATING MODULE WITH ILLUMINATED AXIS - The present disclosure relates to a position-indicating module including a position sensor consisting of a mobile element, able to be driven directly by an operator or by a mechanical or electromechanical drive element, and of a detection assembly delivering electrical information dependent on the position of the mobile assembly, as well as at least one illumination element including at least one light source, wherein the mobile assembly includes a zone able to allow through the light beam issuing from the illumination element and the illumination element is situated opposite the zone. | 05-07-2015 |
20150137796 | ON-AXIS MAGNETIC FIELD ANGLE SENSORS, SYSTEMS AND METHODS - Embodiments relate to magnetic field sensors, such as magnetic field angle sensors with generally on-axis arrangements of sensor elements relative to a rotation axis of a magnet or shaft. The shaft comprises or is coupled to an end portion that comprises a soft magnetic material, in embodiments, with the end portion having an end surface proximate the sensor that is rotationally asymmetric with respect to the rotation axis running through the length of the shaft. The sensor comprises at least three magnetic field sensing elements arranged in a plane generally perpendicular to the shaft and rotation axis. Circuitry forming part of or coupled to the sensor is configured to estimate a rotational position of the shaft by combining the signals of the at least three magnetic field sensing elements. | 05-21-2015 |
20150137797 | OFF-AXIS MAGNETIC FIELD ANGLE SENSORS - Embodiments relate to magnetic field angle sensing systems and methods. In an embodiment, a magnetic field angle sensing system configured to determine a rotational position of a magnetic field source around an axis, comprises N sensor devices arranged in a circle concentric to an axis, wherein N>1 and the sensor devices are spaced apart from one another by about ( | 05-21-2015 |
20150137798 | RELATIVE ROTATIONAL ANGULAR DISPLACEMENT DETECTION DEVICE, TORQUE DETECTION DEVICE, TORQUE CONTROL DEVICE, AND VEHICLE - A permanent magnet includes magnetic poles that are arranged so as to alternate in polarity in the circumferential direction of the axis of rotation. The magnet is attached to one of a pair of rotatable members. The rotatable members are relatively rotatable about an axis of rotation. A magnetic flux guiding ring, including an annular ring body and a plurality of protruding portions protruding from the ring body, is attached to the other rotatable member. A plurality of magnetic sensors is arranged adjacent to the ring body. A first facing portion and a second facing portion, each for guide part of magnetic fluxes of the ring body, are provided and do not rotate with the permanent magnet and the magnetic flux guiding ring. | 05-21-2015 |
20150292906 | MEASUREMENT SYSTEM OF THE RELATIVE POSITION BETWEEN TWO SEPARATE STRUCTURAL PARTS - A measurement system ( | 10-15-2015 |
20150300479 | WORM GEAR MECHANISM - The invention is directed to a worm gear mechanism comprising a worm shaft with a worm thread formed or worked, in particular cut, directly into the shaft main body, and also comprising a worm wheel that meshes with said worm thread, which worm wheel is of annular form and is integrated with an annular connection element of an open-center large-diameter rolling bearing, the two annular, mutually concentric connection elements of which are supported against one another in rotatable fashion and serve for connection to two machine or installation parts that are rotatable relative to one another, wherein the toothed worm wheel connection element is formed from an annular main body with a toothing formed or worked directly therein, having at least one connection surface for abutment against a planar contact surface of the respective machine or installation part, and having multiple fastening bores arranged so as to be distributed in a ring around the clear opening, the longitudinal axes of which bores extend perpendicularly through the respective connection surface; and wherein the non-toothed connection element is formed from an annular main body with at least one planar connection surface for abutment against a planar contact surface of the respective machine or installation part, and having multiple fastening bores arranged distributed in a ring around the clear opening, the longitudinal axes of which bores extend perpendicularly through the respective connection surface; wherein furthermore, in the region of the worm, sensors are provided which permanently detect the (rotational) position of the worm; and to a method for the operation of a worm gear mechanism of said type. | 10-22-2015 |
20150308858 | ANGLE DETECTOR, MOTOR DRIVE CONTROLLER, AND MOTOR DEVICE - An angle detector includes a first signal level detector to detect a sensor processed signal having a maximum signal level of a first set of sensor processed signals obtained by signal processing of multiple sensor signals, each of the multiple sensor signals having a signal level corresponding to a rotational position of a rotor of a motor having multiple coils, a signal level adjuster to adjust each signal level of the first set of the sensor processed signals to match the sensor processed signal having a maximum signal level with a first adjustment level, a signal selector to single out a selection signal from a second set of sensor processed signals adjusted by the signal level adjuster, and a phase detector to output a phase information signal in which the signal level of selection signal selected by the signal selector corresponds to a phase of the rotor. | 10-29-2015 |
20150316394 | SENSING APPARATUS USING GROUPS OF HALL SENSORS AND APPARATUS USING THE SENSING APPARATUS - Provided are a sensing apparatus using a plurality of Hall sensors and an apparatus using the sensing apparatus. The sensing apparatus is configured to measure an intensity of a magnetic field with respect to a magnetic element by using a plurality of Hall sensors and to identify a body that includes the magnetic element. | 11-05-2015 |
20150331066 | MEMS SENSOR, METHOD FOR MANUFACTURING THE SAME, AND MEMS PACKAGE INCLUDING THE SAME - A MEMS sensor according to the present invention includes a base substrate including a displaceably supported movable portion and a lid substrate covering the movable portion and functioning as a magnetic sensor that detects magnetism by making use of the Hall effect. | 11-19-2015 |
20150331067 | SENSOR DEVICE AND SENSOR ARRANGEMENT - A vertical Hall sensor structure according to an embodiment includes a Hall effect region arranged between a first interface and a second interface of the Hall effect region, a first contact, a second contact, a third contact, and a fourth contact, the first, second, third and fourth contacts being closer to the first interface than to the second interface and in contact with the Hall effect region, wherein an electrical resistance between the first and second contacts is substantially equal to an electrical resistance between the third and second contacts, a conductive layer closer to the second interface than to the first interface and in contact with the Hall effect region, the conductive layer comprising a higher conductivity than the Hall effect region, wherein a resistance between the fourth contact and the conductive layer is lower than a resistance between the second contact and the conductive layer. | 11-19-2015 |
20150334919 | CROP SENSING SYSTEM AND METHOD WITH IMMEDIATE GAP DETECTION - An agricultural machine includes a crop row sensor which has a movable paddle which interacts with plants in the crop row, and which periodically generates a sensor signal representing a position of the paddle. A signal processing system includes a memory which stores a plurality of sensor signals. The system determines a minimum magnitude of the stored sensor signals, and generates a drop rate signal representing a change in the sensor signal in a period of time. A gap detection unit generates the gap signal if the minimum signal is less than a threshold and if the drop rate is greater than a drop rate threshold. Thus, the system generates a gap signal when the paddle encounters a gap in the crop row. | 11-26-2015 |
20150338242 | ANGLE SENSOR - An angle sensor for detecting a rotational angle on the basis of a relative angular position of a physical field. The sensor includes a first sensor element and a second sensor element, between which elements the physical field can be transmitted. The first sensor element includes a blind hole in which the second sensor element is rotatably mounted. | 11-26-2015 |
20150345990 | Systems and Methods for a Magnet with Uniform Magnetic Flux - A magnet includes a magnetic body having a length and width. The body has a first notch in one side and extending along at least a portion of the length of the body, and a second notch in an opposite side of the body extending along at least a portion of the length of the body. A magnetic field produced by the body has a substantially uniform magnetic flux along at least a portion of the length of the body. A system for detecting a target includes one or more magnetic field sensing elements positioned within the portion of the magnetic field having substantially uniform flux. | 12-03-2015 |
20150345993 | SENSOR WIRE COUNT REDUCTION SYSTEM - A sensor wire count reduction system having various features is disclosed. Signals from multiple sensors may be combined together to reduce the number of wires implemented to convey the signals to a remote location. Multiple binary sensor outputs may be represented on a single wire as a multi-level signal, and may be decoded at a remote location. | 12-03-2015 |
20150346062 | MOTOR VEHICLE CHASSIS SENSOR - A vehicle chassis sensor assembly comprising a housing member defining a sensor cartridge slot, a rotatable shaft with a magnet and retained in a sleeve, and a rotatable arm coupled to the shaft. A sensor cartridge is mounted in the slot through the interior of a connector socket and an opening between the slot and the connector socket. A plate on the sensor cartridge covers the opening. The sensor cartridge includes a terminal header and a separate board mounted to the terminal header. The board includes the sensor. Deformable posts on the terminal header and the sensor assembly extend through respective apertures in the board and the terminal header for securing the board and the sensor cartridge to the terminal header and the sensor assembly respectively. | 12-03-2015 |
20150346292 | STRUCTURE FOR MOUNTING HALL EFFECT SENSOR OF MOTOR - A structure for mounting a Hall effect sensor, the structure including: a mounting bracket, a mounting plate, a left supporting column, a right supporting column, and a first supporting column. The left supporting column and the right supporting column are protruded upwards from top surfaces of two adjacent teeth at the inner side of a certain winding slot, respectively. The first supporting column is protruded upwards from the top surface of the circular yoke at the outer side of the winding slot. The mounting plate is disposed on top surfaces of the first supporting column, the left supporting column, and the right supporting column. The mounting bracket is installed at the bottom of the mounting plate. The Hall effect sensor is installed in the mounting bracket. | 12-03-2015 |
20150354984 | MAGNETIC FIELD MEASURING DEVICE - A magnetic field measuring device having a semiconductor body with a surface parallel to an x-y plane and having a magnet with a flat main extension surface parallel to the x-y plane, the direction of magnetization changes along the main extension surface due to at least two adjacent magnetic poles, the magnet being rotatable relative to the IC package about an axis of rotation extending in a z direction and the z direction being orthogonal to the x-y plane. An imaginary extension of the axis of rotation passes through the magnet. The semiconductor body has three magnetic field sensors spaced apart from one another on the surface, and each of the magnetic field sensors measures the same component of the magnetic field. All magnetic field sensors are located along the imaginary extension of the axis of rotation within the projection of the main extension surface. | 12-10-2015 |
20150355291 | MAGNETIC SENSOR DEVICE WITH RING-SHAPED MAGNET - A magnetic sensor device includes a ring-shaped magnet and a sensor chip arranged in an opening of the ring-shaped magnet. | 12-10-2015 |
20150369629 | Angle Sensor - An angle sensor, which relates to a technical field of angle measurement, includes: a Hall component and a magnet provided on a fixing frame; wherein the Hall component serves as a rotor, and the magnet serves as a stator; or, the Hall component serves as a stator, and the magnet serves as a rotor. The rotor is connected with a steering mechanism, and the Hall component generates and outputs a Hall voltage, so as to determine the steering angle of the steering mechanism based on the Hall voltage. Driven by the steering mechanism, a magnetic field of the magnet rotates accordingly, or the Hall component rotates accordingly, causing a result that a magnetic field applied to the Hall component changes, and ultimately leading to a change of the Hall voltage outputted by the Hall component, so as to obtain the steering angle of the steering mechanism. | 12-24-2015 |
20150377647 | MAGNETIC SENSOR - To provide a magnetic sensor which is reduced in power consumption without reducing magnetism detection sensitivity of a magnetoelectric transducing element. One end of a magnetoelectric transducing element is connected to an output electrode of a constant current circuit, and the other end thereof is connected to a power supply electrode on the positive side of one or plural signal processing circuits, and the like built in a magnetic sensor, whereby a connection relation of the magnetoelectric transducing element and the signal processing circuit is configured such that they are connected in series with a voltage source. | 12-31-2015 |
20150377648 | Magnetic Field Sensor and Associated Method That Can Sense a Position of a Magnet - A magnetic field sensor, a magnetic assembly, and a method provide circuits and techniques for or measuring one or more displacement angles of a magnet using magnetic field sensing elements. Applications include, but are not limited to, joysticks. | 12-31-2015 |
20150377649 | POSITION DETECTING DEVICE - A position detecting device includes a shaft part that rotates in conjunction with a rotation of an external driving body, a magnet that is integrally provided at one end of the shaft part, a substrate on which a detecting element detecting a magnetic field of the magnet is mounted, a case that includes a disposition portion in which one end of the shaft part and the substrate are disposed, a protective member into which the other end of the shaft part is inserted and which covers the disposition portion, and a seal member that is disposed between the case and the protective member. A support member supporting one end of the shaft part and a bearing supporting the shaft part are mounted on the protective member. The protective member is provided with a protrusion, and the support member is provided with a fitting portion to which the protrusion is fitted. | 12-31-2015 |
20160011010 | Apparatus And Method For Contactless Measurement Of An Angle | 01-14-2016 |
20160011011 | ROTATION DETECTOR | 01-14-2016 |
20160011281 | HALL EFFECT SENSOR | 01-14-2016 |
20160033554 | A CORELESS CURRENT PROBE AND A METHOD OF MEASURING CURRENT - A coreless current probe has a body defining an opening in a plane and a central line through the opening which is normal to the plane. A conductor carrying a current to be measured can be accommodated in the opening. At least three coreless single point magnetic field sensors are distributed in the body around the opening. The linear spacings between adjacent sensors around the opening are not all the same. In another embodiment, the sensors are not all located on a common cylindrical surface. One embodiment has a U-shaped body enabling engagement with a current carrying conductor. The sensors are arranged so that the sum of the outputs each with appropriate weighting is zero in any homogenous field. The sensors outputs have differing weightings so as to maximize rejection by the probe of external magnetic fields. | 02-04-2016 |
20160041005 | Magnetic Position Sensor and Position Detecting Method - The present invention enables to obtain an approximate position of a zero crossing point in a shorter time period. A magnetic position sensor detects, with an array in which multiple magnetic detection elements are arranged in a straight line, the zero crossing point at which the magnetic flux density from a pair of magnetic poles is zero in a plane perpendicular to the longitudinal direction of the array. The magnetic detection elements are elements whose output changes in polarity when the direction of the magnetic flux density is inverted, and detect an approximate position of the zero crossing point by reading an output of every k-th magnetic detection element of the array (where k is an integer of 2 or greater). Then, the position of the zero crossing point is detected according to outputs of at least two magnetic detection elements on both sides of the zero crossing point. | 02-11-2016 |
20160041006 | TRUE-PHASE TWO-DIMENSIONAL MAGNETIC FIELD SENSOR - Embodiments relate to magnetic field sensor devices, systems and methods that can more accurately detect edges of a target. In one embodiment, a sensor device comprises a first magnetic field sensor element and a second magnetic field sensor element proximate a target, such as a toothwheel, to sense rotation of the target. The sensor device can be considered a two-dimensional magnetic field sensor in embodiments, in that the first magnetic field sensor element can be sensitive to a first magnetic field component (e.g., the Bx component), and the second magnetic field sensor element can be sensitive to a second magnetic field component (e.g., the Bz component). In other embodiments, sensor system | 02-11-2016 |
20160041007 | Hall Sensor Insensitive to External Magnetic Fields - A Hall sensor includes a first Hall element pair configured to provide a first measurement signal, a second Hall element pair configured to provide a second measurement signal, and a third Hall element pair configured to provide a third measurement signal. Each element in the third Hall element pair is arranged between Hall elements of the first Hall element pair and Hall elements of the second Hall element pair. The Hall element pairs are configured to be actuated such that the first, second, and third measurement signals can be combined into one aggregate measurement signal which corrects an error in an angle of rotation determination caused by an external magnetic field. | 02-11-2016 |
20160054149 | SYSTEM AND METHOD FOR TRACKING LINEAR POSITION AND ROTATION OF A PISTON - A system and method to determine linear and approximate rotational position of a reciprocating and rotating hydraulic cylinder. The system uses two magnetic rings offset a distance, each ring having a continuous arc of magnetic material terminating in a blind zone, where the blind zone produces a magnetic field substantially different from the continuous arc region. The magnetic fields are used to detect location and rotation by an magnetic sensor that interacts with the magnets and blind zone. | 02-25-2016 |
20160101723 | BRAKE MASTER CYLINDER - Disclosed is a brake master cylinder. An aspect of the present invention provides a brake master cylinder including a BLS module to control the switching on of a brake lamp according to an operation of a piston provided to reciprocate within a cylinder body, wherein the BLS module includes: a magnet fixed to a guide hole formed in the cylinder body in a lengthwise direction of the cylinder body; an actuating member coupled to the piston so as to be moved together with the piston as the piston is moved; a Hall sensor installed in the cylinder body at a location corresponding to the magnet for detect the magnetic flux density of the magnet; and a shielding member slidably provided in the guide hole and moved by the actuating member for shielding the Hall sensor from the magnet. | 04-14-2016 |
20160123770 | MAGNETIC FIELD MOTION SENSOR AND RELATED TECHNIQUES - A magnetic field sensor for detecting motion of an object includes magnetic field sensing elements to generate at least two phase-separated magnetic field signals and a processor including a vector angle generator to generate vector angle values as a function of the magnetic field signals and a vector angle comparator to generate a comparator output signal indicative of a difference between a plurality of vector angle values. An output signal generator responsive to the comparator output signal is configured to generate a sensor output signal indicative of a one or more conditions of motion of the object including: an absence of normal rotation, a direction change, and a vibration. In some embodiments, the vector angle comparator may generate a comparator output signal indicative of a comparison of a vector angle value and one or more threshold values. In this case, the output signal generator may be configured to generate a sensor output signal indicative of a speed of motion and/or a position of the object. | 05-05-2016 |
20160123771 | Magnetic Field Sensor Providing a Movement Detector - A magnetic field sensor has a plurality of magnetic field sensing elements and operates as a motion detector for sensing a rotation or other movement of a target object. | 05-05-2016 |
20160124056 | SENSING DEVICE AND METHOD FOR MANUFACTURING SENSING DEVICE - A sensor module includes a magnetic field sensor that includes a sensor main body including a magnetic field sensing element and a plurality of lead wires led out from the sensor main body, a container case including a container part that includes the sensor main body, and a molded body that includes a mold resin molded so as to include at least a part of the container case without contacting with the sensor main body. | 05-05-2016 |
20160138940 | CONTACTLESS ROTARY SENSOR - A rotary sensor ( | 05-19-2016 |
20160146632 | SENSOR ASSEMBLY FOR USE IN SENSOR BEARINGS - A sensor assembly for use in sensor bearings, the sensor assembly comprising at least two sensor units configured to be arranged on a ring of the sensor bearing in different angular positions with regard to the rotation axis of the bearing. Each of the sensor units includes at least one hall sensor plate. At least two hall sensor plates of different sensor units are wired in an antiparallel orientation in order to compensate offset voltages of the hall sensor plates. | 05-26-2016 |
20160161286 | ONBOARD DETECTOR - An onboard detector includes a cable including an insulated wire including a center conductor and an insulation covering the center conductor and a sheath covering the insulated wire, a sensor including a sensor main body including a detecting element and a lead wire extending from the sensor main body and connected to the center conductor, and a fixing member to fix the sensor to the cable. The fixing member is configured to fix the insulated wire exposed from the sheath while being bent between the sheath and the lead wire. The insulated wire fixed while being bent allows the cable to be arranged such that an axial direction of the sheath inside the fixing member intersects with a direction parallel to a longitudinal direction of the lead wire. | 06-09-2016 |
20160161287 | MULTI-TIER LIMIT-ANGLE PROTECTION DEVICE - A multi-tier limit-angle protection device detects a rotation angle about a rotation axis of a driving apparatus to thereby control the operation of a driving motor of the driving apparatus. The multi-tier limit-angle protection device includes a first-axis potentiometer for generating a first-axis sensing signal, a first-axis limit-angle detecting module for generating a first-axis confirming signal, and a controller. The controller effectuates a first tier protection mechanism by determining whether a limit angle of the rotation axis is exceeded according to the first-axis sensing signal, effectuates a second tier protection mechanism by determining whether the first-axis potentiometer is operating well according to a first-axis confirming signal, and effectuates a third tier protection mechanism through its control over the driving motor. The multi-tier limit-angle protection device features integration of software and hardware to thereby preclude mechanism complexity and provide a multi-tier limit-angle protection mechanism. | 06-09-2016 |
20160161288 | DISPLACEMENT DEVICES AND METHODS AND APPARATUS FOR DETECTING AND ESTIMATING MOTION ASSOCIATED WITH SAME - Apparatus and method estimate a position of a movable stage. The apparatus comprises: a stator comprising 2D array of sensors arranged relative to one another to provide a plurality of stator-Y oriented sensor columns and a plurality of stator-X oriented sensor rows; a movable stage comprising a first Y-magnet array comprising a plurality of first magnetization segments generally linearly elongated in a stage-Y direction, each first magnetization segment having a stage-Y direction length, L | 06-09-2016 |
20160200450 | DIRECT POSITION MEASUREMENT FOR AIRCRAFT FLIGHT CONTROL SURFACES | 07-14-2016 |
20160202085 | Non-contact Axial Articulation Sensing | 07-14-2016 |
20160377460 | FAILURE DIAGNOSIS METHOD FOR HALL SENSOR - A failure diagnosis method for a Hall sensor includes: a failure recognizing step of recognizing a failure signal of a Hall sensor by a control unit; a duty increasing step of, when the failure signal is recognized as a result of having performed the failure recognizing step, increasing a driving duty of an oil pump by a preset value; and a failure diagnosing step of diagnosing a failure of the Hall sensor after the duty increasing step. | 12-29-2016 |
20170234699 | TAPERED MAGNET | 08-17-2017 |
20170234700 | Tapered Magnet | 08-17-2017 |
20180023976 | POSITION DETECTION SYSTEM, POSITION DETECTION METHOD, IMAGE GENERATION UNIT AND IMAGE PROJECTION APPARATUS | 01-25-2018 |
20180023977 | SINGLE OR MULTIPLE AXIS MAGNETIC SENSOR FOR RELATIVE PHASE MEASUREMENT OF WHEEL ROTATION IN TPMS APPLICATION | 01-25-2018 |
20190145795 | COMMUNICATION CONSOLE | 05-16-2019 |