| Entries |
| Document | Title | Date |
|---|
| 20080204005 | ENERGY HARVESTING TECHNIQUE TO SUPPORT REMOTE WIRELESS MEMS RF SENSORS - A method of harvesting vibrational energy is provided. This method involves generating a high magnetic flux density field within a current induction conductor such as an induction coil. The high magnetic flux density field is generated between two same pole magnets. The high magnetic flux density field may be displaced relative to the current induction conductor with vibrational energy. These displacements then cause the current induction conductor to be energized. The two same pole magnets are mounted between piezoelectric transducer (PZT) materials. These PZT materials generate an electric potential when the PZT materials are subject to the mechanical stresses of the vibrational energy. The electrical energy translated from the vibrational energy through both the energized current induction conductor and stress PZT materials may then be used to power a power circuitry or be stored for later use. | 08-28-2008 |
| 20080284417 | INCREMENTAL DISPLACEMENT TRANSDUCER AND METHOD FOR DETERMINING A DISPLACEMENT OF A FIRST OBJECT RELATIVE TO A SECOND OBJECT - The invention relates to an incremental displacement transducer for determining a displacement of a first object relative to a second object with a scanning unit linked with the first object for scanning a division track linked with the second object having first areas and second areas alternately arranged with a period length, the first areas having a first physical property and the second areas a second physical property differing therefrom. The scanning unit has a plurality of sensors for scanning the first areas and second areas on the basis of the first and/or second physical property. An evaluating unit is linked with the scanning unit for determining the displacement on the basis of the measuring signals of the sensors. | 11-20-2008 |
| 20080290860 | Angle of rotation sensor - An angle of rotation sensor includes at least one coil provided with windings and a magnetically conductive element which interacts with the coil is rotatable with a shaft for transmitting a detectable rotational movement, and whose different overlap degree with at least one magnetically conductive body depends on the rotational position thereof. The magnetically conductive element is located outside of a space surrounded by the coil in each rotational position thereof and the magnetically conductive body is U-shaped in such a way that two legs thereof form an intermediate space therebetween and a perpendicular cross web connecting them. The magnetically conductive body includes shaft bearings mounted on the end areas of the legs. | 11-27-2008 |
| 20090001968 | Apparatus for Measuring the Relative Position of Two Parts - Apparatus for measuring the relative position of two parts with a deformable coil, which is connected to both parts and deforms according to their relative position, wherein the inductance of the coil depends on shape and is thus a measure of the relative position, and wherein the coil has a magnetic circuit which is closed in the manner of a toroidal coil. | 01-01-2009 |
| 20090009158 | SELF-ENERGIZING SENSING DEVICE FOR DETECTING MOVING FERROUS ELEMENTS AND ASSEMBLIES THEREWITH - A self-energizing, non-contacting sensing device for detecting movement of ferrous elements, methods of use and assemblies therewith. The device includes a permanent magnet, a pair of ferrous conductors, an inductor coil and a microprocessor. The ferrous conductors are attached to the permanent magnet with free ends of the ferrous conductors being spaced from one another to provide a gap. The gap provides an open circuit in the absence of the moving ferrous elements and a substantially closed circuit in the presence of the moving ferrous elements. When the circuit alters between open and closed states, in the absence and presence of the moving ferrous elements, respectively, an electromotive force imparted on the inductor coil generates an alternating current. The microprocessor is configured to detect the alternating current produced in the inductor coil, and thus, can assess whether the ferrous elements are moving in a normal or abnormal manner. | 01-08-2009 |
| 20090201012 | Device for Locating a Vehicle Tied to a Roadway - A cost-effective system provides reliable location information for locating a vehicle tied to a guideway. Reference markers are mounted to the guideway and scanning devices are disposed in the vehicle and generate at least one output signal when they pass a reference marker. The scanning devices are formed from several individual sensors which are extended in the driving direction with an average scanning length equal to or greater than a distance between neighboring reference markers. | 08-13-2009 |
| 20090219013 | METHOD AND DEVICE FOR SECURE MONITORING OF A DISTANCE - The invention relates to a method for securely monitoring a distance between a metallic part and an inductive proximity sensor, in particular for monitoring a closed position of a guard door in an automated system, said method having the steps of: providing an oscillating circuit, providing a metallic part made of a first material, driving the oscillating circuit with at least one pulse, such that a decaying oscillation is generated which is dependent on a distance between the metallic part and the oscillating circuit and which has an actual frequency and an actual attenuation, and signaling whether both the actual frequency undershoots a predefined maximum frequency and the actual attenuation undershoots a predefined maximum attenuation. The invention also relates to a signaling device for monitoring a distance between a metallic part and an inductive proximity sensor. | 09-03-2009 |
| 20100001718 | INDUCTIVE POSITION SENSOR - A detector to measure the displacement of relatively moveable bodies along an axis comprising: a resonant electrical intermediate device further comprising an inductor, whose width varies along the displacement axis, and a capacitor in electrical series which co-operates with an antenna comprising transmit and receive windings whose mutual inductance varies according to the position of the electrical intermediate device relative to the antenna. | 01-07-2010 |
| 20100001719 | SENSOR MAGNET HOLDER FOR USE IN MOTOR AND ITS MANUFACTURING PROCESS - A sensor magnet holder is mounted on a motor shaft, and a sensor magnet is provided relative to a magnetic induction sensor on the non-moving side for obtaining a signal indicative of a rotational position of the motor shaft. The sensor magnet holder integrally forms a cylindrical portion, a flange portion of a terminal end of the cylindrical portion having a large diameter, a magnet rear end holding portion of the other terminal end of the cylindrical portion and a plurality of snap fit board portions. A shaft press fit portion is formed on an internal diameter of the flange portion. The plural snap fit board portions extend from the cylindrical portion in an axial direction of the motor shaft. A magnet front end holding portion is formed at an extending tip over an outer diameter surface of each of the snap fit board portions. Each of the flexible snap fit board portions snuggly contacts the inner flat surface of the sensor magnet while the sensor magnet is held between said magnet rear end holding portion and said magnet front end holding portion. | 01-07-2010 |
| 20100045273 | Measuring vibrations of a turbo-machine rotor blade with the help of an induction sensor in high temperature - A method is disclosed of measuring vibrations on turbo-machine rotary turbine blades utilizing an induction sensor at high temperatures. A set of magnets produces a magnetic field which results in a measurement signal generated in the sensor's coil which then can be interpreted to measure the vibrations. | 02-25-2010 |
| 20100072987 | DISPLACEMENT SENSOR - A displacement sensor includes a primary coil ( | 03-25-2010 |
| 20100090688 | METHOD AND SENSOR ARRANGEMENT FOR DETERMINING THE POSITION AND/OR CHANGE OF POSITION OF A MEASURED OBJECT RELATIVE TO A SENSOR - A method for determining the position and/or change of position of a measured object relative to a sensor, where the sensor preferably has a sensor coil to which an alternating current is applied, is characterized in that a magnet associated with the measured object, in a soft magnetic foil, whose permeability changes under the influence of a magnetic field on the basis of the magnetic field's field strength and which is arranged in the area of influence of the sensor, brings about a change in the permeability of the foil and in that the change in the permeability of the foil is determined from the latter's reaction to the sensor, and this is used to determine the position and/or change of position of the measured object relative to the sensor. A sensor arrangement is designed accordingly. | 04-15-2010 |
| 20100117630 | DISPLACEMENT SENSING DEVICE - A compact sensing device capable of sensing a rotational angle and a rotational velocity, or a rectilinear moving distance and a moving velocity. A displacement sensing device that senses a rotational angle of a moving member rotation and a distance of a linear movement of the moving member, or senses an angular velocity of the moving member rotation and a velocity of a linear movement of the moving member, includes: a first movable member, moved together with the moving member by a linear movement of the moving member; a second movable member holding the first movable member in a rotatable manner, and rotated together with the moving member by rotation of the moving member; a first sensor outputting a signal in accordance with a linear movement of the first movable member; and a second sensor outputting a signal in accordance with a rotation of the second movable member. | 05-13-2010 |
| 20100207611 | PROXIMITY SENSOR - The present invention relates to a proximity sensor having a first transmission coil, a second transmission coil, at least one reception coil, an excitation device which is connected to the first and second transmission coils, and an evaluation unit which is connected to at least one transmission coil and/or to the excitation device as well as to the at least one reception coil. | 08-19-2010 |
| 20100213929 | ROTOR BLADE SENSOR - A rotor blade sensor for detecting a rotor blade ( | 08-26-2010 |
| 20100253325 | GEARBOX POSITION DETECTION - The invention relates to a motor vehicle gearbox position detector comprising a sensor ( | 10-07-2010 |
| 20100271012 | ELECTROMAGNETIC POSITION AND ORIENTATION SENSING SYSTEM - Magnetic tracking systems and methods for determining the position and orientation of a remote object. A magnetic tracking system includes a stationary transmitter for establishing a reference coordinate system, and at least one receiver. The remote object is attached to, mounted on, or otherwise coupled to the receiver. The transmitter can include a set of three mutually perpendicular coils having a common center point, or a set of three coplanar coils with separate centers. The receiver can include a set of three orthogonal coils. The position and orientation of the receiver and the remote object coupled thereto is determined by measuring the nine mutual inductances between the three transmitter coils and the three receiver coils. The magnetic tracking system provides reduced power consumption, increased efficiency, digital compensation for component variation, automatic self-calibration, automatic synchronization with no connections between transmitter and receiver, and rapid low-cost implementation. | 10-28-2010 |
| 20100308803 | INDUCTIVE DISPLACEMENT TRANSDUCER, CODING DEVICE, AND METHOD FOR DETECTING A POSITION OF A FIRST OBJECT IN RELATION TO A SECOND OBJECT - The invention relates to an inductive displacement sensor for determining a position of a first object relative to a second object having a coding device to be attached to the first object, having a sensor unit to be attached to the second object, said sensor unit comprising a plurality of inductive sensors for scanning the coding device. The inductive displacement sensor according to the invention is characterized in that the coding device comprises a plurality of marking sections separated from one another by measurement sections, at least the measurement sections having variable widths, in that the marking sections and the measurement sections have different physical properties to aid differentiation by the sensor unit, in that identification regions are formed by the measurement sections or by the measurement sections along with adjacent marking sections, in that the sensor unit is at least long enough in the extension direction of the coding device and the number of inductive sensors is at least great enough that at least one identification region may be detected in every measurement situation, and in that, in order to distinctly associate an identification region with an absolute position of the sensor unit relative to the coding device, each identification region occurs precisely once on the coding device. The invention further relates to a coding bar and a method for determining a position of a first object relative to a second object. | 12-09-2010 |
| 20100315071 | READ HEAD - A read head with a sensor unit, whereby the sensor unit has a first RFID transponder reader unit and an induction detector unit. With the combination of two types of reader units, read heads of this type can be used for determining the position of rail vehicles. | 12-16-2010 |
| 20110006759 | POSITION DETECTION APPARATUS AND SENSOR UNIT - A position detection apparatus includes a position pointer having a coil and a sensor unit for detecting the position of the position pointer. The sensor unit has a sensor board including a plurality of loop coils juxtaposed and extending in a predetermined direction, and the sensor unit detects a signal generated in the loop coils by electromagnetic induction between the coil of the position pointer and the loop coils, to thereby detect the position of the position pointer. The sensor unit further includes a shield member disposed on the sensor board remotely from the position pointer for reducing noise, and a magnetic path sheet formed from a plurality of magnetic path members of a substantially rectangular shape having a higher magnetic permeability than that of the shield member and disposed between the sensor board and the shield member. The magnetic path members have mutually contacting portions disposed in an inclined relationship by a predetermined angle relative to said predetermined direction of the sensor board. | 01-13-2011 |
| 20110031963 | INDUCTIVE SENSOR FOR SPEED, ROTATIONAL DIRECTION AND POSITION MEASUREMENTS IN THE HIGH TEMPERATURE RANGE - An inductive sensor with coils arranged substantially in layers on a flat circuit-carrier. The edges of the flat circuit-carrier are metallized obliquely so that an upper side, a lower side, an intermediate layer and/or a plurality of intermediate layers of the flat circuit-carrier are interconnected with one another via the edges in a conductive manner. | 02-10-2011 |
| 20110068777 | INDUCTIVE ANGLE-OF-ROTATION SENSOR AND METHOD FOR OPERATING AN INDUCTIVE ANGLE-OF-ROTATION SENSOR - An inductive angle-of-rotation sensor includes a printed circuit board, on which one excitation conductor path, and a first, second as well as third receiving conductor path are applied. The angle-of-rotation sensor further includes a graduation element having a first and second graduation track. The first and second graduation tracks, and the first and second receiving conductor paths are arranged such that signals having a first period number are able to be generated by the first receiving conductor path, and signals having a second period number are able to be generated by the second receiving conductor path. The graduation element further has a third graduation track, so that signals having the first period number are able to be generated by the third receiving conductor path. In addition, a method is provided for operating an angle-of-rotation sensor. | 03-24-2011 |
| 20110101967 | ENHANCED PERFORMANCE PROXIMITY SENSOR - An industrial control sensor is provided. The sensor includes a sensor circuit to detect changes in an electromagnetic field induced from an object or material passing in proximity of the electromagnetic field. This includes a housing that employs the sensor circuit as part of an inductive proximity sensor. A sensor face is attached to the housing, where the sensor face receives the changes in the electromagnetic field and transmits the changes to the sensor circuit, and where the sensor face has a higher electrical resistivity or a lower temperature coefficient of resistivity than stainless steel. | 05-05-2011 |
| 20110109303 | PROCESSING CIRCUITRY - A position encoder is described that generates a signal whose phase varies with a position to be determined. A phase detector determines a first phase measurement of the sensor signal during a first mode and a second phase measurement of said sensor signal during a second mode. The phase detector then differences the first and second phase measurements to obtain a phase difference measurement, which it uses to determine an indication of the position to be sensed. A controller controls a signal generator in order to set a start phase of signals generated in at least one of the first and second modes so that the timings at which said sensor signal crosses a reference level are substantially the same. | 05-12-2011 |
| 20110181274 | METHOD FOR ANALYZING DC SUPERPOSITION CHARACTERISTICS OF INDUCTANCE DEVICE, AND ELECTROMAGNETIC FIELD SIMULATOR - A method for analyzing the DC superposition characteristics of an inductance device using a magnetic field analysis simulator, comprising a first step of determining an initial magnetization curve from initial magnetization to saturation magnetization, and pluralities of minor loops at different operating points, on a toroidal core made of the same magnetic material as that of the inductance device, and obtaining point-list data showing the relation between magnetic flux density or magnetic field strength and incremental permeability from the incremental permeability at each operating point; a second step of determining an operating point at a predetermined direct current on each element obtained by mesh-dividing an analysis model of the inductance device by a magnetic field analysis simulator based on the initial magnetization curve of the core, allocating the incremental permeability to the operating point from the point-list data, and integrating the inductance of each element obtained from the incremental permeability to determine the inductance of the entire inductance device; and a third step of repeating the second step at different direct current levels to determine the DC superposition characteristics. | 07-28-2011 |
| 20110234209 | ELECTROMAGNETIC MOTION SENSOR - An electromagnetic motion sensor includes a base, an electromagnetic induction layer, a block, and an emitting coil. The electromagnetic induction layer with a plurality of induction coils is arranged on the bottom of the base. The block is movably connected to the base by a plurality of elastic members. The emitting coil is fixed to a center of the bottom of the block facing the induction layer. A circuit inside the block provides current to the emitting coil. The block moves with the jerk of the motion sensor when the motion sensor is jerked, causing the elastic members to be distorted. The relative movement between the block and the magnetic induction layer causes more than one of the induction coils generate and output voltage signals according to the change of magnetic flux through the plurality of induction coils caused by the moving of the emitting coil. | 09-29-2011 |
| 20110234210 | APPARATUS FOR DETECTING DISPLACEMENT OF ELECTROMAGNETIC ACTUATOR - A displacement detecting apparatus of an electromagnetic actuator, including: an electromagnetic actuator including: a movable core; a drive coil which causes a displacement of the movable core; and a detection coil disposed at a position where a mutual coupling coefficient with the drive coil changes with the displacement, the actuator transmitting a drive force of the movable core to a mechanical system; a drive portion for supplying a drive current to the drive coil on the basis of a pulse width modulation signal; and a displacement detecting portion to which an output voltage of the detection coil is inputted, for outputting a displacement detection signal, wherein the displacement detecting portion includes: a sampling-signal generating portion for generating a sampling signal in synchronism with the pulse width modulation signal; and a synchronous sampling portion for outputting the displacement detection signal by sampling the output voltage in synchronism with the sampling signal. | 09-29-2011 |
| 20110254540 | Micro-Magnetic Sensor for Acceleration, Position, Tilt, and Vibration - A micro-magnetic based sensor and a system built with it for detecting or measuring acceleration, speed, position, placement, tilt, and vibration are disclosed for a reduced product size, simplified manufacturing process, and reduced product cost. Both micro-magnetic sensor and micro-magnetic system include a primary micro inductor and a secondary micro inductor coupled with a micro magnetically permeable dynamic medium element that is small, simple and low cost to manufacture. | 10-20-2011 |
| 20110254541 | ELECTROMAGNETIC ENCODER - According to the present invention, an electromagnetic encoder includes a number of scale coils arranged on a scale along a measuring direction; and transmitting coils and receiving coils arranged on a grid to be movable relative to the scale in the measuring direction, in which a relative movement amount between the scale and the grid is detected based on variation in magnetic flux detected by the receiving coils via the scale coils at the time of exciting the transmitting coils, and the receiving coils are provided in the measuring direction to be a plurality of sets, one of the sets of the receiving coils being displaced by a ½ phase of a scale pitch relative to the other set of the receiving coils. | 10-20-2011 |
| 20110260714 | INDUCTIVE ANGLE SENSOR WITH IMPROVED COMMON MODE NOISE REJECTION AND SIGNAL PROCESSING METHOD OF THE SAME - The present invention provides an inductive angle sensor with improved common mode noise rejection and a signal processing method of the same, which can improve electromagnetic compatibility (EMC) characteristics and obtain an accurate output value by eliminating common mode noise. The signal processing method includes adding signals obtained from a pair of receiver coils by an adder, subtracting the signal obtained from one of the pair of receiver coils from the signal obtained from the other receiver coil by a subtracter, multiplying the value obtained from the adder by the value obtained from the subtracter by a first multiplier, multiplying the value obtained from the subtracter by itself by a second multiplier, and dividing the value obtained from the first multiplier by the value obtained from the second multiplier by a divider. | 10-27-2011 |
| 20110304323 | POSITION SENSOR - The position sensor includes a moving member configured to be displaced in response to displacement of a measurement target, a resonant unit, an oscillation unit, a signal processing unit, an output unit, a signal absence detection unit, and a low-pass filter. The resonant unit includes a detection coil arranged to have inductance varied corresponding to displacement of the moving member. The resonant unit is configured to have a resonant frequency determined by the inductance of the detection coil. The oscillation unit is configured to output an oscillation signal having its magnitude oscillating at a frequency corresponding to the resonant frequency. The signal processing unit is configured to determine the displacement of the measurement target on the basis of the oscillation signal. The output unit is configured to output an output signal indicative of the displacement of the measurement target determined by the signal processing unit. The signal absence detection unit is configured to judge whether or not the oscillation signal is output from the oscillation unit. The signal absence detection unit is configured to, upon judging that the oscillation signal is not output from the oscillation unit, output a malfunction detection signal to the signal processing unit. The low-pass filter is interposed between the oscillation unit and the signal absence detection unit. The signal processing unit is configured to, upon receiving the malfunction detection signal, issue occurrence of malfunction. The low-pass filter is configured to have a cut-off frequency which passes the oscillation signal corresponding to the resonant frequency of the resonant unit in a normal condition, but blocks the oscillation signal output from the oscillation unit when the resonant unit sees an oscillation at an abnormal frequency. | 12-15-2011 |
| 20110309825 | Simplified Micro-Magnetic Sensor for Acceleration, Position, Tilt, and Vibration - A simplified micro-magnetic based sensor and a system built with it for detecting or measuring acceleration, speed, position, placement, tilt, and vibration are disclosed for a reduced product size, simplified manufacturing process, and reduced product cost. Both simplified micro-magnetic sensor and simplified micro-magnetic sensor system include a primary micro inductor and a secondary micro inductor coupled with a micro magnetically permeable dynamic medium element that is small, simple and low cost to manufacture. | 12-22-2011 |
| 20120007591 | INDUCTIVE POSITION SENSOR - A detector to measure the displacement of relatively moveable bodies along an axis comprising: a resonant electrical intermediate device further comprising an inductor, whose width varies along the displacement axis, and a capacitor in electrical series which co-operates with an antenna comprising transmit and receive windings whose mutual inductance varies according to the position of the electrical intermediate device relative to the antenna. | 01-12-2012 |
| 20120013328 | DUAL WIRE DYNAMIC PROXIMITY TRANSDUCER INTERFACE FOR USE IN PROXIMITY TRANSDUCER SYSTEM AND PROXIMITY TRANSDUCER SYSTEM INCLUDING THE SAME - A proximity transducer system including an eddy current effect proximity probe, a proximity electronics module coupled to the probe, a monitoring system and a two-wire, current interface connecting the proximity electronics module to the monitoring system is disclosed. The proximity transducer system is operative for measuring position and vibration of a component to be monitored. The current interface is made up of a pair of wires, e.g., a twisted pair, and is adapted for providing power to the electronics module and an electrical signal from the proximity electronics module that is representative of (e.g., proportional to) the length of the gap between the probe and the component being monitored. That signal has a DC component that represents a steady state distance and an AC component that represents active movement of the component, such as vibration. | 01-19-2012 |
| 20120056616 | Distance sensor - A sensor device for height measurement, air spring comprising a sensor device for height measuring and a corresponding method allowing determining the height also under rough conditions like noisy, dusty or vibrating environments. | 03-08-2012 |
| 20120081106 | DOUBLE-COIL INDUCTIVE PROXIMITY SENSOR APPARATUS - Systems and/or methods are provided for a dual-channel inductive proximity sensor. The sensor can include a sensing element which includes a core having a first cavity and a second cavity, a first coil accommodated within the first cavity of the core, and a second coil housed within the second cavity of the core. Each coil can be independently driven by oscillators to generate respective magnetic fields. The magnetic fields can be monitored to determine whether detection of a target object occurs. | 04-05-2012 |
| 20120081107 | INDUCTIVE PROXIMITY SENSOR WITH ACTIVE CIRCUIT TO CANCEL STRAY FIELDS - Systems and/or methods are provided for cancelling stray magnetic fields escaping out the back or sides of an inductive proximity sensor. The inductive proximity sensor includes a coil assembly with a sensing coil. The sensing coil detects magnetic flux escaping out the sides and/or back of the sensor. An active circuit couples to the sensing coil. The active circuit generates a canceling current based upon a current and/or electromotive force in the sensing coil due to the flux. The cancelling current drives a driven coil to generate a magnetic field which can reduce total flux through the sensing coil to zero. | 04-05-2012 |
| 20120098527 | TRANSDUCER - A transducer is described for use in a position sensor. The transducer has a magnetic field concentrating member, such as an elongate ferrite rod, a first coil operable, in use, to couple with a first portion of the magnetic field concentrating member positioned adjacent the first coil and a second coil operable, in use, to couple with a second portion of the magnetic field concentrating member positioned adjacent the second coil, the second portion being spaced along the magnetic field concentrating member from the first portion. The transducer also comprises a resonator having a coil wound around a portion of said magnetic field concentrating member which is located between said first and second portions. The transducer is arranged so that, during use, the electromagnetic coupling between the resonator and at least one of the first and second coils varies as a function of the relative position between the elongate field concentrating member and that coil. In this way, separate processing electronics can process the signals obtained from the transducer to determine the desired position information. | 04-26-2012 |
| 20120119728 | INDUCTIVE DISTANCE SENSOR - Inductive adjustment of the core-fitted coil ( | 05-17-2012 |
| 20120187941 | TARGETING OPERATION SITES - A system for targeting an operation site includes an identifier having an electromagnetic field generator configured to produce electromagnetic fields. The system includes an implement that includes a handle, a blade portion, and an electromagnetic field sensor coupled to the blade portion. The electromagnetic field sensor is configured to produce a signal responsive to electromagnetic fields produced by the electromagnetic field generator. The system includes a control unit configured to access information indicating a position of the electromagnetic field sensor relative to the operation site, receive a signal from the electromagnetic field sensor that is indicative of a position of a tool relative to the electromagnetic field sensor, and determine a position of the tool relative to an operation site based on the received signal and the position of the electromagnetic field sensor relative to the operation site. | 07-26-2012 |
| 20120268109 | METHOD AND ARRANGEMENT FOR SYNCHRONIZING A SEGMENT COUNTER WITH A FINE POSITION SENSOR - A method and an arrangement for performing the method for the error-free conversion of the counting values of a segment counter including Wiegand sensors and the position values of a fine position sensor into a total position value using the last magnetization direction of the Wiegand wire of a segment counter as part of the information for an absolute synchronization of counting and position values. | 10-25-2012 |
| 20120268110 | INDUCTIVE PROXIMITY OR DISTANCE SENSOR - The invention relates, in particular, to an inductive proximity or distance sensor. The invention proposes that a core | 10-25-2012 |
| 20120299585 | SENSOR AND METHOD FOR PRODUCING THE SENSOR - An inductively operating sensor, particularly for measuring distances and positions of a metallic object, comprising at least a coil, a ferromagnetic or ferritic core and perhaps a housing comprising a sensor element, with the core being embedded in a single or multi-layered ceramic and jointly with the ceramic forming a coil body and with the coil body and the core being connected to each other in a form-fitting fashion. Furthermore, a method is suggested for producing such a sensor. | 11-29-2012 |
| 20120313627 | OPERATION INPUT APPARATUS AND OPERATING APPARATUS - An operation input apparatus includes an operating unit that is displaced by the action of an operation input; an actuator output shaft that is displaced in the same direction as the operating unit by the action of the operation input; an actuator that moves the operating unit via the actuator output shaft; and a detecting element that outputs a signal corresponding to an amount of displacement of the operating unit. | 12-13-2012 |
| 20120313628 | COIL FORM FOR MOUNTING ON A MAGNET CORE, MAGNET CORE FOR RELUCTANCE RESOLVERS, AND METHOD OF MANUFACTURE - The present invention relates to a coil form ( | 12-13-2012 |
| 20130021022 | RESOLVER - A resolver stator includes an annular first cover portion, an annular second cover portion, and a plurality of pillars. The first and second cover portions cover coils from both axial sides. The pillars couple the first and second cover portions, and are arranged between the adjacent teeth. Each pillar has circumferential side faces each of which has a radially inner end portion that is arranged with a labyrinth clearance left between the radially inner end portion and a radially inner end portion of the tooth next to the side face, and each of which is a concave curved surface so as to be further apart from the tooth from the radially inner end portion toward a radially outer end portion of the side face. | 01-24-2013 |
| 20130021023 | POSITION SENSOR - A position sensor includes a detection coil printed on a surface of a substrate formed of a dielectric material; and a detection body arranged in an opposing relationship with the detection coil and displaced along a specified orbit with respect to the detection coil in response to a displacement of a target object. The position sensor detects the displacement of the target object based on an inductance of the detection coil varying depending on the displacement of the detection body. At least one of the detection coil and the detection body is formed into such a shape that a change rate of the inductance of the detection coil with respect to the displacement of the detection body is kept constant. | 01-24-2013 |
| 20130033256 | SENSOR AND SENSOR ELEMENT - Sensor with a one-layer or multi-layer sensor element operating in a contact-free manner and a housing comprising an electric/electronic connection and, in given cases, electronic components, where the sensor element comprises a coil arrangement whose windings have a defined line width, line thickness, and line spacing per layer and whose layers have a defined layer thickness and, in given cases, a defined layer spacing, characterized in that the sensor element is built up from ceramic layers in the sense of multi-layer ceramics and that with respect to traditional coil arrangements the line width is reduced and the number of windings per cross-sectional surface area is increased. | 02-07-2013 |
| 20130043864 | WINDING METHOD AND WINDING STRUCTURE OF STATOR FOR ROTATION DETECTOR, AND ELECTRIC MOTOR COMPRISING ROTATION DETECTOR | 02-21-2013 |
| 20130057261 | ROTATION DETECTOR AND METHOD OF PRODUCING A ROTOR IN THE ROTATION DETECTOR | 03-07-2013 |
| 20130076344 | INDUCTION-BASED REFERENCE POINT LOCATOR - According to one aspect of the present disclosure, an induction-based reference point locator is provided. The locator includes transmitter locatable at a position on a first side of a structure, the transmitter configured to generate an alternating magnetic field at a desired frequency; and a receiver locatable on a second side of the structure opposite the first side, the receiver configured to detect the magnetic field and provide a directional indication to the position of the transmitter relative to the second side of the structure. | 03-28-2013 |
| 20130082692 | Detector - An inductive detector operable to measure displacement along a path comprises:
| 04-04-2013 |
| 20130088216 | POSITION SENSOR AND/OR FORCE SENSOR - A device for determining a position of a movable, magnetizable and/or conductive body relative to a stator that has at least one pole winding. Apparatuses are provided for detecting a measurement signal that depends on the inductance of the pole winding, wherein the inductance is influenced by the position of the body. | 04-11-2013 |
| 20130093413 | SENSOR APPARATUS - A sensor apparatus for detecting a position of an axially movable camshaft is provided. The sensor apparatus includes a coil block including a detection coil wound along an axial direction of the camshaft to define a bore into which the camshaft is inserted, and a control unit electrically connected to the detection coil and designed to output a signal based on a change in inductance of the detection coil. | 04-18-2013 |
| 20130106405 | DEVICE FOR DETECTING THE POSITION OF AN ACTUATOR | 05-02-2013 |
| 20130113467 | Angle Detection Apparatus - Provided is an angle detection device capable of detecting the angle with high sensitivity by a very simple assembly process without requiring complicated processing. The angle detection device is provided with: a rotor ( | 05-09-2013 |
| 20130127448 | Smart Electromagnetic Sensor Array - An array of induction coil sensors is used to monitor, from multiple locations, the strength of a magnetic field generated by a wire to be traced. The magnetic field strength data is used to determine the location and orientation of the wire. In one embodiment, the sensor array is incorporated into a test instrument. The screen of the test instrument provides a graphical user interface that shows the orientation of the wire and indicates the location of the wire relative to the instrument. | 05-23-2013 |
| 20130141083 | Magnetic Inductive Type Position Sensor - Disclosed is a magnetic inductive type position sensor, the position sensor including at least one rotor body coupled to a rotation shaft to rotate in association with rotation of the rotation shaft and having a plurality of protrusively and circumferentially formed wing members, a PCB arranged in opposition to the rotor body, and a guide member connecting each distal end of the wing members to guide each of the wing members to be aligned on the same planar surface. | 06-06-2013 |
| 20130187638 | VARIABLE RELUCTANCE SENSOR USING SPATIALLY MODULATED MAGNETIC FIELDS - A sensor includes a magnetic piece with a magnetic array, a conductive coil and ferromagnetic object. The magnetic array provides a spatially modulated magnetic field that is concentrated in the near-field. A processor calculates the ferromagnetic object's speed based on voltage induced in the conductive coil. The ferromagnetic object's movement through the magnetic field causes a change in the magnetic flux, and the rate of change is proportional to the induced voltage. | 07-25-2013 |
| 20130193956 | METHODS AND APPARATUS FOR SENSING A SUBSTRATE IN A LOAD CUP - Methods, apparatus, and systems are provided for detecting the presence of a substrate in a load cup. The invention includes a proximity sensor having a detection pad disposed below a contact surface of a load cup assembly and a target disposed on a lever member and adapted to move toward the detection pad when a substrate is placed on the lever member and adapted to move away from the detection pad when a substrate is removed from the lever member. Numerous additional aspects are disclosed. | 08-01-2013 |
| 20130221953 | ABSOLUTE POSITION RECORDING DEVICE OF MOTOR - An absolute position recording device of a motor includes a main spindle, a magnetic ring, a magnetic induction unit, an encoder, a counter, and an operation unit. The magnetic ring and the encoder are fixed on and rotated by the main spindle. The magnetic induction unit outputs square waves and the encoder outputs sine or cosine waves. The counter receives the square waves and calculates a number of rotations of the magnetic ring. The operation unit receives the sine or cosine waves and calculates an angular deflection relative to a standard position of the magnetic ring. The operation unit adds the angular deflection and the number of rotations and calculates an absolute angular position. | 08-29-2013 |
| 20130271120 | POSITION MEASURING SYSTEM AND ASSOCIATED MEASURING METHOD FOR DETECTING AN INDICATED POSITION OF A LINEARLY MOVABLE GUIDE ELEMENT - A position measuring system detects an extreme position of a guide rod which extends along a path that is rectilinear relative to a guide system and can be moved along the rectilinear path, wherein the system operates reliably, and requires a minimum of electrical lines. The position measuring system is equipped with a plurality of sensor elements and a magnetic element, wherein the magnetic element is configured to form a magnetic field. The magnetic element is connected to the guide rod. Each sensor element is configured to detect a magnetic field within a detection region, a field strength of the magnetic field being greater at the location of the sensor element than a predefined threshold value. At least one sensor element is connected to the guide system and is arranged in an environment of the path. A corresponding measuring method uses the position measuring system to detect the extreme positions. | 10-17-2013 |
| 20130328552 | ELECTROMAGNETIC PUSHING AND KNOCKING-TYPE OBJECT DETECTOR - A level sensor, particularly an electromagnetic pushing and knocking-type object detector, comprising: a magnetic swinging rod, an electromagnet that is disposed on one side of the magnetic swinging rod, and an electronic module that controls the electromagnet in driving the magnetic swinging rod to swing, and amplifies, processes, and time-delay outputs the swinging signals of the magnetic swinging rod, which swinging signals are collected by the electromagnet, said magnetic swinging rod is suspended with a suspension device on one side of a main housing, and the electromagnet, which is composed of an electromagnet iron core and an electromagnet coil, is disposed inside the main housing. The electric module comprises a power supply circuit, a pulse generation circuit, a pulse driving circuit, a signal amplification circuit, a signal processing circuit, and a signal time delay output circuit, and the aforementioned circuits are all disposed in the main housing or are isolated from the main housing and enclosed separately. The present invention has the advantages of high sensitivity, accuracy, and reliability; has a wide range of applications; is maintenance-free; and features a long service life. | 12-12-2013 |
| 20140002063 | SYSTEM AND METHOD FOR MAGNETIC POSITION TRACKING | 01-02-2014 |
| 20140062464 | APPARATUS FOR DETECTING A MAGNETICALLY CONDUCTIVE OBJECT AND POSITION MEASURING SYSTEM FOR MEASURING THE POSITION OF A GUIDE ROD AND ASSOCIATED POSITION MEASURING METHOD - An apparatus for detecting a magnetically conductive object in a detection area has an electrical coil and at least one sensor element. The apparatus is intended to be as free of degradation processes as possible and thus requires little maintenance and is configured and set up with the highest possible degree of redundancy and measurement reliability. For this purpose, the coil is set up to form a magnetic field in the detection area and the sensor element is configured to detect a magnetic field with a field strength, the magnitude of which is greater than a predefined threshold value. The threshold value is set to be higher than the field strength present in the detection area when the magnetically conductive object is absent and lower than the field strength present therein when the object is present. | 03-06-2014 |
| 20140091785 | TARGET CLEARANCE MEASUREMENT DEVICE - A target or rotor blade clearance measurement device is disclosed for indicating an interaction of a measurement probe with a target or rotor blade. In a preferred embodiment, the measurement device comprises a measurement probe containing a coil, a frequency source arranged to apply an input alternating signal to the measurement probe, and a frequency regulator arranged to regulate the input alternating signal at a frequency below the resonance frequency of the measurement probe. A detector is arranged to detect an output signal from the measurement probe at a frequency of the frequency source which varies in amplitude with an admittance and resonance frequency of the measurement probe. A circuit is arranged to scale the amplitude of the output signal detected by the detector according to the amplitude of the input signal provided by the frequency source. | 04-03-2014 |
| 20140097831 | SHIELDINGS FOR METAL DETECTOR HEADS AND MANUFACTURING METHODS THEREOF - Systems and methods for shielding a metal detector head include placement of conductive shielding around the coils of the head to reduce the effects of capacitance variation between the coils and their surroundings. | 04-10-2014 |
| 20140247040 | Position Detecting System - A position detecting system detects and responds to the movement of a target through a sensing domain area of a plane. The movement causes the amount of the target that lies within a sensing domain area to change. A portion of the target always lies within at least one of the sensing domain areas of the plane. | 09-04-2014 |
| 20140266164 | SYSTEMS AND METHODS FOR POSITION TRACKING USING MAGNETOQUASISTATIC FIELDS - Embodiments of the invention broadly contemplate systems, methods, apparatuses and program products that provide position tracking using a simple, low frequency oscillator that is attached to an object to be tracked, and one or more receiving stations that are placed around the area in which the object moves. Embodiments of the invention enable position tracking of the object using light weight equipment which minimally impacts the object's natural state. | 09-18-2014 |
| 20150022190 | Inductive Position Sensor - Circuits for inductive position sensor are described. | 01-22-2015 |
| 20150028859 | Contactless Sensing Element - Contactless measurement sensor for measuring at least one of a distance to an object to be sensed, a motion with respect to an object to be sensed, a speed with respect to an object to be sensed, a torque applied to an object to be sensed and a force applied to an object to be sensed the contactless measurement sensor comprises a first magnetic field generating unit being adapted for generating a magnetic field towards the object to be sensed, a first magnetic field detector unit being adapted for detecting a first magnetic field which field being generated by the first field generator unit and being influenced by a respective distance, motion, speed, applied torque and applied force to be measured, wherein the first magnetic field detector unit is further adapted for outputting a first signal being representative for the detected magnetic field, and an evaluating unit being adapted for evaluating a signal strength of the first signal and determining the respective distance, motion, speed, applied torque and applied force based on the first signal. | 01-29-2015 |
| 20150028860 | DEVICE AND METHOD FOR DETECTING DEFECTS DURING SEALING OF A PACKAGE COMPRISING A FOIL - The invention relates to a device for detecting defects during sealing of a package comprising a foil. The invention also relates to a method for detecting defects during sealing of a package comprising a foil, particularly by making use of the device according to the invention. | 01-29-2015 |
| 20150061650 | METHOD AND ARRANGEMENT AND SENSOR FOR DETERMING THE POSTION OF A COMPONENT - The invention relates to a method and an arrangement for determining a position of a first component ( | 03-05-2015 |
| 20150070003 | INTEGRATED BRAKE CONTROL SENSOR - A sensor assembly for a vehicle electronic braking system including a housing, at least one linear sensor, the at least one sensor contained within the housing, the linear sensor adapted to measure the linear distance traveled of a brake pedal. The assembly further includes a rotary sensor, the rotary sensor also contained within the same housing, the rotary sensor adapted to measure rotary motion of a DC motor in an the electronic braking system. The rotary sensor and the at least one linear sensor each in communication with a brake control unit. The at least one linear sensor and the at least one rotary sensor is encapsulated, either together or separately. The at least one linear sensor is a Hall-effect sensor. A wake up switch circuit is integrated with at least one of the linear sensors to wake up the system when the driver depresses the brake pedal in the electronic braking system. The rotary sensor is an inductive sensor. | 03-12-2015 |
| 20150097555 | RESOLVER - A resolver includes a resolver rotor that is provided in an outer circumference of the motor shaft and rotates integrally with the motor shaft, a resolver stator that has a plurality of coils and surrounds an outer circumference of the resolver rotor such that a rotational angle detection gap is provided between the outer circumference of the resolver rotor and the resolver stator, a housing that houses the resolver rotor and the resolver stator and has an opening for extracting wires of the coils in an outer circumference side of the resolver stator, a wire harnessing member provided to extend from the resolver stator to an outer side of the housing through the opening and consolidates wires of a plurality of the coils, and a cover member that covers a gap between the opening and the wire harnessing member. | 04-09-2015 |
| 20150130444 | POSITION DETECTION DEVICE - In a position detection device of a type that omits a secondary coil, various inconveniences arising from the use of a voltage-dividing resistance (fixed resistor) are eliminated. At least two pairs of coils are provided. A magnetism-responsive member are placed so as to effect relative displacement in relation to the coils, the relative position of the member in relation to the coils varies with a position of a detection object, and impedance of each coil is varied with the relative position. The impedance changes of two coils constituting each one of coil pairs present characteristics of mutually opposite phase characteristics. For each coil pair, the two coils constituting the pair are connected in series with each other, and from a connection point thereof, a voltage-divided output voltage according to the impedance of the two coils is taken out as a detection output signal for the pair. | 05-14-2015 |
| 20150137801 | METHOD AND APPARATUS FOR ALIGNING A VEHICLE WITH AN INDUCTIVE CHARGING SYSTEM - A method and apparatus for aligning a vehicle with an inductive charging system is characterized by the addition of alignment coils to a secondary coil on the vehicle. For efficient inductive charging, it is necessary that the vehicle mounted secondary coil be aligned with a stationary primary coil of a transformer of the inductive charging system. When the primary coil is energized, it produces a magnetic field which induces a voltage in the alignment coils as a function of the proximity of the alignment coils to the central axis of the primary coil. The voltage differential between opposed pairs of alignment coils is determined by a comparator which then generates a directional signal which can be used by the operator of the vehicle to position the vehicle for closer alignment of the vehicle secondary coil with the primary coil and more efficient charging. | 05-21-2015 |
| 20150292909 | Resolver Positioning System, Robot And Method Therefor - The present invention relates to a resolver positioning system for a robot, which system is connectable to a battery supply ( | 10-15-2015 |
| 20150292910 | INDUCTION DETECTING TYPE ROTARY ENCODER - An induction detecting type rotary encoder includes: a stator; a rotor disposed opposite the stator; a first transmitting coil that is provided in the stator and includes a first inner circumference coil and a first outer circumference coil; a second transmitting coil that is provided in the stator and includes a second inner circumference coil and a second outer circumference coil; first and second receiving coils provided in the stator; and first and second magnetic flux coupling bodies provided in the rotor. The closest distance between the first inner circumference coil and the second magnetic flux coupling body is shorter than that between the first outer circumference coil and the second magnetic flux coupling body. The closest distance between the second inner circumference coil and the first magnetic flux coupling body is shorter than that between the second outer circumference coil and the first magnetic flux coupling body. | 10-15-2015 |
| 20150300801 | ROCKING SENSOR DEVICE - A rocking sensor device includes a primary bracket ( | 10-22-2015 |
| 20150300843 | INDUCTIVE POSITION SENSING IN LINEAR ACTUATORS - A method for determining a position of a magnet assembly relative to an array of inductive elements arranged adjacent to a magnetically permeable material, the method involving: measuring electrical characteristics of each of one or more inductive elements of the array of inductive elements; and from information derived from the measured electrical characteristics of the one or more inductive elements of the array of inductive elements, determining the position of the magnet assembly relative to the array of inductive elements. | 10-22-2015 |
| 20150301084 | SENSOR WITH SHIELDING ELEMENT - A sensor assembly is provided having a first sensor (pedal travel sensor) and a second sensor (motor position sensor). The first sensor having a first coil and a first coupler. The second sensor having a second coil and a second coupler. A shield element is positioned at least partially between the first coupler and the second coupler so as to prevent unwanted interaction between the first coil and the second coil. In one embodiment, the shield element is made of ferrite. In other embodiments, the shield element includes at least one layer of ferrite and at least one layer of aluminum, wherein the shield element include a layer of aluminum sandwiched between two layers of ferrite. More specifically, the shield element is a flux field directional material (FFDM). | 10-22-2015 |
| 20150308860 | Inductive Displacement Sensor - Inductive displacement sensors and methods of using them may be useful in a variety of contexts. For example, systems for precisely measuring linear or angular motion may use inductive displacement sensors to measure changes in position. An apparatus, such as a sensor, can include a primary inductor. The apparatus can also include a first secondary inductor that is field-coupled to the primary inductor. The apparatus can further include a second secondary inductor that is field-coupled to the primary inductor. The first secondary inductor and the second secondary inductor can be configured as coordinated inductors to detect motion of a coupler. The coordinated inductors can be configured to provide a reference signal and a measurement signal, wherein the reference signal has a constant amplitude across a range of motion of the coupler. | 10-29-2015 |
| 20150309203 | ELECTRONIC DRYWALL FASTENER LOCATER - An electronic drywall fastener/stud locator that includes a plurality of metal detectors connected together, each having a shunt resistance that varies based on the size of surrounding metal objects and the proximity of these objects. A sensing circuit is coupled to the sensor plates to measure the resonant frequency of the sensor plates. A controller is coupled to the sensing circuit to analyze the resonant frequency and parallel reactance measured by the sensing circuit. One or a plurality of indicators are coupled to the controller and are selectively activated to identify the location of a relative high inductance, which can be indicative of a wooden or metallic stud behind a surface. | 10-29-2015 |
| 20150323301 | HIGH SENSITIVITY INDUCTIVE SENSOR FOR MEASURING BLADE TIP CLEARANCE - A high sensitivity inductive sensor for measuring clearance of a rotating blade tip includes a one or more of sensing coils. The sensing coils are formed of magnet wire, which is wound to form planar spiral coils. Each of the coils are coupled in series with a function generator, which applies an excitation signal thereto. Accordingly, based on the change in impedance of the coils, a clearance measurement, which identifies the distance between the coil and the tip of the rotating blade can be obtained using predetermined calibration curve values. | 11-12-2015 |
| 20150323349 | Sensor Arrangement for Sensing Rotation Angles on a Rotating Component in a Vehicle - A sensor arrangement for sensing a rotation angle on a rotating component in a vehicle includes a first measurement transmitter. The first measurement transmitter is coupled at a periphery with a predefined first transmission ratio to the rotating component. The sensor arrangement includes a second measurement transmitter coupled at the periphery with a predefined second transmission ratio to the rotating component. The first and second measurement transmitters are mounted on a common axis of rotation. The first and second measurement transmitters generate, in conjunction with a corresponding first and second to measurement recorder, data configured to determine the current rotation angle of the rotating component. | 11-12-2015 |
| 20150330812 | POSITION-DETECTING UNIT HAVING REDUCED OFFSET VOLTAGE, AND METHOD USING SUCH A UNIT - To eliminate measurement errors, such as “offset voltages” in sensors of the inductive type by modifying the architecture of the assembly of elements used for signal processing, the architecture of the apparatuses processing the signal from the secondary windings is modified as follows:
| 11-19-2015 |
| 20150344266 | ELEVATOR CAR POSITION DETECTION DEVICE - In an elevator car position detection device, a magnetic field generator generates an eddy current magnetic field on an identification member, and a magnetic field detector detects the eddy current magnetic field generated on the identification member. The identification member includes a plurality of conductors which are continuously arranged along an ascending and descending direction of a car, and are relatively different in a plate thickness with respect to a skin depth of an eddy current generated by the magnetic field generator on the identification member. A shape of at least a part of a boundary between the adjacent conductors is a straight line or a curve tilted with respect to a direction orthogonal to the ascending and descending direction of the car. | 12-03-2015 |
| 20150345995 | RESOLVER - The number of turns and the winding direction of a cosine-phase coil wound around an i-th tooth and the number of turns and the winding direction of a sine-phase coil wound around the i-th tooth are set according to T | 12-03-2015 |
| 20150354991 | COIL ARRANGEMENT HAVING TWO COILS - A cod arrangement, in particular for a position sensor, has a first coil ( | 12-10-2015 |
| 20150362338 | Excitation Signal Generator for Resolver - A resolver excitation signal generator includes a source configured to generate a sinusoidal input signal and an inverting amplifier circuit. The inverting amplifier circuit has an input connected to the source to receive the sinusoidal input signal and an output lacking a transistor stage. The inverting amplifier circuit is configured to amplify the sinusoidal input signal to generate at the output of the inverting amplifier circuit an excitation signal in the form of an amplified version of the sinusoidal input signal for a resolver. | 12-17-2015 |
| 20150362339 | METHOD FOR PRODUCING A SENSING DEVICE - A sensor for detecting a position of an encoder magnet in a direction of motion, including: a first coil extending in the direction of motion, a second and third coil, which are aligned with the first coil and which are arranged symmetrical to each other with respect to a point of symmetry as observed in the direction of motion and which accordingly form a first and second transformer with the first coil, the transformation ratio of which transformers depends on the position of the encoder magnet, and a magnetic asymmetry, which changes the transformation ratio of one of the transformers with respect to the other transformer. | 12-17-2015 |
| 20150369943 | METHOD OF OPTIMISING THE OUTPUT OF A SENSOR - Method of optimising output of sensor for indicating location of metallic object. Sensor having primary electromagnetic coil to generate time varying magnetic field; secondary electromagnetic coil to detect time varying magnetic field as affected, by object to output, on basis of detected time varying magnetic field, signal indicative of location of object. Method includes steps of: supplying primary coil with alternating-current to result generated time varying magnetic field; locating object in first-position and recording signal output by secondary electromagnetic coil for range of frequencies of supplied alternating-current; locating object in second-position and recording signal output by secondary electromagnetic coil for range of frequencies of supplied alternating-current; calculating, for each of frequencies, a value for span to offset ratio of measured signals on basis of respective signals measured for object in first and second positions; determining frequency of supplied alternating-current which provides maximum span to offset ratio on basis of calculations. | 12-24-2015 |
| 20160003642 | NUMBER WHEELS READ-OUT BASED ON AN INDUCTANCE VALUE - An apparatus includes a rotatable element, a coil nearby to the rotatable element, and a conversion unit coupled to the coil. More specifically, the rotatable element is configured to represent a count, wherein the rotatable element includes an outer edge that comprises a plurality of numbers indicating successive increment of a count, and each number is deposited within a conductive layer. The conductive layer associated for the numbers include different sizes. The coil is configured to generate an inductance value for each number based on the size of the conductive layer associated with each number, and the conversion unit is configured to convert the generated inductance value to a digital value. | 01-07-2016 |
| 20160025518 | POSITION DETECTION DEVICE OF AMB - A position detection device of active magnetic bearings (AMB's) maintaining the position of a rotating shaft and comprising two sensing inductance coils, the position detection device comprising a programmable digital component for generating a 25 KHz square waveform signal, a current amplifier receiving the 25 KHz square waveform signal and injecting two identical control currents in the two sensing inductance coils, a differential amplifier for amplifying a voltage difference between the resulting voltages in the two sensing inductance coils and, depending on the displacement of the rotating shaft, an analog to digital (A/D) converter for delivering a position value from the voltage difference. | 01-28-2016 |
| 20160025519 | METHOD AND ANGLE SENSOR FOR CONTACTLESS MEASUREMENT OF AN ANGLE - A method and an angle sensor for contactless measurement of an angle between a first machine element and a second machine element rotatable with respect thereto. A plurality of coils are non-rotatably connected to the first machine element and include at least five transmitter coils, which are distributed around the rotational axis. Each of the transmitter coils is arranged in a sector around the rotational axis. An iron-core element non-rotatably connected to the second machine element is disposed in the form of a sector opposite the transmitter coils. In one step of the method, electrical primary voltage pulses act on the individual transmitter coils. The primary voltage pulses induce a secondary voltage pulse in each case in at least one other of the coils. One of those transmitter coils, the sector of which is only partially covered by the iron-core element, is selected. The determination of the angle to be measured is effected starting from a ratio formation between the amplitude of the secondary voltage pulse associated with the selected transmitter coil and a peak amplitude. | 01-28-2016 |
| 20160033304 | COMPOSITE MATERIAL MARKING WAVE - A position sensor for a bearing arrangement is provided. The position sensor includes at least one shaft or bearing ring, an inductive sensor, and a composite marking ring connected to the at least one shaft or bearing ring. The composite marking ring is spaced apart from and aligned with the inductive sensor and includes a ferrous material ring having a wavy surface with a plurality of projections with valleys therebetween facing the inductive sensor. The inductive sensor detects a rotational angle position of the at least one shaft or bearing ring based on a proximity of the wavy surface to the inductive sensor. An outer layer formed of a filler material is arranged at least on the wavy surface of the ferrous material ring. The filler material comprises a non-ferrous material and the outer layer provides a constant predetermined spacing between the composite marking ring and the inductive sensor. | 02-04-2016 |
| 20160040975 | INDUCTION-BASED REFERENCE POINT LOCATOR - According to one aspect of the present disclosure, an induction-based reference point locator is provided. The locator includes transmitter locatable at a position on a first side of a structure, the transmitter configured to generate an alternating magnetic field at a desired frequency; and a receiver locatable on a second side of the structure opposite the first side, the receiver configured to detect the magnetic field and provide a directional indication to the position of the transmitter relative to the second side of the structure. | 02-11-2016 |
| 20160054151 | ENCODER SCALE AND METHOD OF MANUFACTURING THE SAME - An encoder scale for an electromagnetic induction linear encoder includes a substrate, an electroconductive layer exhibiting electroconductivity and provided to one surface of the substrate, and an electric conductor provided on the electroconductive layer. The electroconductive layer is wider than the electric conductor in a plan view of the substrate and is grounded. The electroconductive layer is formed on the entire one surface of the substrate except a guide surface, and glass is exposed on the guide surface. | 02-25-2016 |
| 20160061631 | Method for Detecting Abnormality of Resolver, Angle Detection Device, Motor, and Transportation Device - There are provided a method for detecting an abnormality of a resolver, an angle detection device, a motor, and a transportation device, by which the abnormality can be detected promptly without the necessity of any complicated operations. There is provided a circuit configured to switch between a sine wave and a direct current voltage to be supplied, as an excitation signal of a resolver ( | 03-03-2016 |
| 20160061983 | ANTENNA APPARATUS WITH AN INTEGRATED PROXIMITY SENSOR AND METHODS - Wireless wide area network (WWAN) antenna with integrated sensor and methods of using the same. In one embodiment, an antenna subsystem and proximity sensing subsystem share a grounded antenna component/parasitic element. The parasitic element can be used to broaden the operating band of the antenna feeding component and provide an input (via a capacitance change) to a proximity sensor. The parasitic element is, in one embodiment, coupled in parallel to the proximity sensor allowing for a reduction in noise due to increased isolation between the antenna subsystem and the sensing subsystem. | 03-03-2016 |
| 20160069662 | INDUCTIVE POSITION DETECTION - A position detecting system detects and responds to the movement of a target through a sensing domain area of a plane. The movement causes the amount of the target that lies within a first sensing domain area of a first sensor to change. A second sensor detects a height from the plane to a sensor for enhancing accuracy of measurements from the first sensor. | 03-10-2016 |
| 20160123777 | ROTATION NUMBER DETECTOR - A rotation number detector outputs a signal based on a detection signal from a sensor, the detection signal reflecting a movement of a detected portion of a detection object. The output signal from the sensor is rectified by a comparator. A cycle measurement circuit measures a cycle of a rectangular wave signal from the comparator. A variable divider variably divides the cycle in reverse proportion to the measured cycle of the cycle measurement circuit, dividing the cycle by a smaller dividing ratio when the measured cycle becomes longer and dividing the cycle by a greater dividing ratio when the measured cycle becomes shorter. A one shot circuit converts the rectangular wave signal of the variable divider to a signal having a dividing ratio discernible wave form, which represents the dividing ratio of the variable divider, and outputs such a signal. | 05-05-2016 |
| 20160146634 | ROTARY ANGLE SENSOR - A rotary angle sensor used to determine a relative angular position as compared to a reference position, comprising a housing ( | 05-26-2016 |
| 20160146637 | INDUCTIVE SENSOR FOR MEASURING THE POSITION OF A SHAFT OF A VEHICLE - An inductive sensor for measuring the position of a shaft of a vehicle in a first direction (X) and a second direction (Y), from a target mounted on the shaft. The sensor ( | 05-26-2016 |
| 20160161290 | FIXATION STRUCTURE AND RESOLVER STATOR - A knock pin ( | 06-09-2016 |
| 20160178411 | SENSOR MOUNT | 06-23-2016 |
| 20160187159 | METHOD OF MAKING SENSING MECHANISM AND MACHINE SYSTEM USING SAME - A method of making a machine system includes assembling sensing elements with a sensor frame, and contacting ferrite cores of the sensing elements with a locating tool to conform an arrangement of the sensing elements to a cylindrical shape of a surface of the locating tool. The sensing elements are secured to the sensor frame in the determined arrangement, and coupled with a housing of a machine system to monitor position of a rotatable component therein. The ferrite cores may be E-type cores, with bridge connections used to sensitize the sensing mechanism to displacement of a rotatable component in X, Y, and Z directions. | 06-30-2016 |
| 20160187161 | SENSOR AND METHOD FOR DETECTING A POSITION IN TWO SPATIAL DIRECTIONS - Sensor for detecting a position in two spatial directions (x, y), wherein the sensor comprises a sensor array and an actuator. The sensor array has a first row and at least a second row. The rows have in a first spatial direction (x) adjacently arranged sensor elements. The rows are arranged side by side in a second spatial direction (y) transverse to the first spatial direction (x). The actuator is arranged in a third spatial direction (z) transverse to the first spatial direction (x) and the second spatial direction (y) spaced apart from the sensor array. The actuator is designed movable in the first spatial direction (x) and the second spatial direction (y) relative to the sensor array. The actuator is adapted to influence a measurement variable of the sensor elements, wherein a signal of a sensor element represents a degree of overlap of the sensor element by the actuator. | 06-30-2016 |
| 20160187162 | AIR SPRING HEIGHT MEASUREMENT ARRANGEMENT - The subject invention relates to an air spring height measurement arrangement comprising a magnetic field transmitting arrangement ( | 06-30-2016 |
| 20160197620 | METHOD AND SYSTEM USING COMPUTATIONAL SIGMA-DELTA MODULATORS | 07-07-2016 |
| 20160252368 | Sensor Arrangement for Detecting a Pedal Movement in a Vehicle | 09-01-2016 |
| 20160252369 | TRACKING POSITIONS OF PERSONNEL, VEHICLES, AND INANIMATE OBJECTS | 09-01-2016 |
| 20160377455 | ELECTROMAGNETIC INDUCTION SENSOR, OVERLAY MEMBER FOR ELECTROMAGNETIC INDUCTION SENSOR, AND MANUFACTURING METHOD OF ELECTROMAGNETIC INDUCTION SENSOR - Disclosed herein is an electromagnetic induction sensor that is used with a position indicator and includes coils for electromagnetic coupling with the position indicator. The electromagnetic induction sensor includes: a sensor board main body that includes an insulating substrate and a surface sheet attached to a side of a first surface of the insulating substrate, on which side a position is indicated by the position indicator; at least part of conductors forming the coils being formed on a second surface of the insulating substrate opposite from the first surface; and an overlay member that includes a magnetic powder material layer and is adhered to the side of the second surface of the sensor board main body. | 12-29-2016 |
| 20160380488 | SYSTEMS, METHODS AND APPARATUSES FOR GUIDANCE AND ALIGNMENT IN ELECTRIC VEHICLES WIRELESS INDUCTIVE CHARGING SYSTEMS - An apparatus for determining a relative position of a wireless power transmitter from a wireless power receiver is provided. The apparatus comprises a plurality of sense coils, each configured to generate a respective signal under influence of an alternating magnetic field comprising a plurality of wave pulses, each wave pulse occurring in a respective time slot of a plurality of time slots. The apparatus further comprises a processor configured to determine the relative position of the wireless power transmitter from the wireless power receiver based on the respective signal from each of the plurality of sense coils. | 12-29-2016 |
| 20180023940 | POSITION SENSING SYSTEM WITH AN ELECTROMAGNET | 01-25-2018 |
