| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324207230 | Plural measurements (e.g., linear and rotary) | 15 |
| 20080231265 | POSITION DETECTOR WITH TILT SENSOR - A scale section is made of a magnetic material. A repeated pattern is recorded at a uniform pitch on the surface of the scale section. A sensor section is provided independently from the scale section. The sensor section is provided with a magnetic position sensor that reads the pattern, on a surface close to the surface of the scale section. Further, the sensor section is provided with a magnetic tilt sensor that detects a tilt between the surface of the scale section and the surface of the sensor section on which the position sensor is located. The magnetic position detector in which the scale section and the sensor section are separated from each other can be efficiently fixed to a detection target using the tilt sensor. | 09-25-2008 |
| 20090039876 | Apparatus Detecting Relative Body Movement - The invention relates to a measuring device for detecting a body moving in relation to an, in particular, tubular container. Said device comprises at least one magnet unit which generates a magnetic field, measures this magnetic field and which is assigned to the container and/or to the magnetic body. The device also comprises at least one evaluation device connected to the magnet units and provided for receiving measurement signals of the magnet units. The aim of the invention is to improve a measuring device of this type in order to be able to easily determine, in addition to the position of the body in relation to the container in a longitudinal direction, the position of the body in relation to the container in the transverse direction with a relatively high level of accuracy. To this end, the magnet units comprise a maximum magnetic flux that is essentially perpendicular to the direction of the relative motion of the body and container. | 02-12-2009 |
| 20090295376 | MAGNETIC ODOMETER WITH DIRECTION INDICATOR SYSTEMS AND METHODS - Systems and methods for determining a directional movement of an object such as a wheeled vehicle. The system includes a magnet having a north pole and a south pole mounted to the object, a single magnetic sensor positioned such that the sensor can individually detect each magnetic pole as the object moves, the sensor configured to produce a first characteristic signal when a north pole is detected and a second characteristic signal when a south pole is detected, and a processing device in signal communication with the sensor, the processing device configured to determine a directional movement of the object based on a configuration of a signal doublet that includes the first and second characteristic signals. The methods include sensing the north and south poles as they pass the magnetic sensor and determining a direction based on an order in which the north and south poles are sensed. | 12-03-2009 |
| 20090295377 | Contactless position sensor for vehicle - A position sensor has opposed parallel flux concentrators with a gap between them, and permanent magnets are disposed between the concentrators at the ends of the concentrators in the gap. A magnetic sense element is disposed in the gap between the magnets. The magnets with flux concentrators do not move relative to each other, and may be coupled to a moving part whose position is sought to be measured, whereas the sense element may be coupled to a stationary part. | 12-03-2009 |
| 20100231205 | POSITION SENSOR WITH VARIABLE DIRECTION OF MAGNETIZATION AND METHOD OF PRODUCTION - A magnetic sensor of rotary, linear, or curvilinear displacement using at least one permanent magnet and at least one magnetosensitive element, which can move with respect to one another. The magnet exhibits a direction of magnetization that varies continuously along the direction of displacement, with the exclusion of a diametral magnetization in the case of a rotary sensor. | 09-16-2010 |
| 20100308804 | Method and Apparatus for Magnetic Contactless Measurement of Angular and Linear Positions - Contactless measurement of angular or linear positions is obtained by means of magnetic circuit configurations, biased by a permanent magnet, characterised by two airgaps whose relative geometry is designed to result in magnetic field values whose ratio is a function of the position to be measured. The magnetic field in said airgaps is measured by magnetic field probes, whose output signals are then electronically conditioned to generate a voltage proportional to said ratio. The output signal being function of a ratio, it naturally becomes insensitive to drifts of the magnet working point, or drifts in sensitivity of the magnetic field probes. In one embodiment said ratio of magnetic field values becomes a function of the relative angular displacement of two coaxial shafts, while becoming completely independent from their absolute angular displacement, allowing hence the realisation of simple and robust torque sensors. | 12-09-2010 |
| 20130106407 | COMPACT 3D DIRECTION FINDER | 05-02-2013 |
| 20130113469 | MAGNETIC LENGTH MEASURING SYSTEM, LENGTH MEASURING METHOD AND METHOD FOR PRODUCING A MAGNETIC LENGTH MEASURING SYSTEM - A length measuring system comprises includes a magnetic component having two helical magnetically conductive or magnetic elements which have first and second axial ends. The elements are arranged in an axially symmetrically manner relative each other along a common longitudinal axis such that a magnetic field can be formed between the elements, the angle of said the field relative to the common longitudinal axis continuously rotating along a predetermined length. The length measuring system further comprises includes a magnetic sensor which can be arranged between the two elements at a right angle to the common longitudinal axis of the elements and which is connected to an evaluation unit. | 05-09-2013 |
| 20150115940 | Position Measuring Device - A position measuring device includes a measuring standard that has a first magnetization in a first section for generating a first signal level. The first magnetization is oriented in a first direction, has a first clearance between two adjacent unlike poles, and generates a first maximum of the field strength at the working distance. Furthermore, the measuring standard has a second magnetization in a second section situated next to the first section for generating a second signal level. The second magnetization is oriented in a second direction, has a second clearance between two unlike poles, and generates a first maximum of the field strength at the working distance. The first direction is oriented counter to the second direction, the first clearance is greater than the second clearance, and the first maximum is greater than the second maximum. | 04-30-2015 |
| 20150130446 | Magnetic Out-of-Axis Angle Sensing Principle - The present disclosure relates to a magnetic angle sensor module having first magnetic polewheel comprising a first number of poles and a second magnetic polewheel comprising a second number of poles greater than the first number. First and second magneto-resistive sensors are located around the first polewheel at a first angular position and a second angular position, respectively. The first and second magneto-resistive sensors collectively generate sensor signals corresponding to a measured angle of the first polewheel, while the third magneto-resistive sensor generates a third sensor signal corresponding to a measured angle of the second polewheel. A signal processor receives the first and third sensor signals and operates an algorithm that determines a position within a signal curve of the second polewheel from the first sensor signal and that determines an enhanced angle from the position within the signal curve and the third sensor signal. | 05-14-2015 |
| 20150300842 | Device and Method For Determining the Change of Position of a 3D Measuring Head - The invention relates to a device for determining the change of position of a 3D measuring head, comprising a 3D measuring head; at least one sensor device, connected to the 3D measuring head, to detect a respective position-dependent measured quantity; and an evaluating device for determining a change of position of the 3D measuring head at a final position relative to a starting position from the at least one detected measured quantity; wherein the change of position includes a displacement in space and a rotation in space. The invention further relates to a corresponding method. | 10-22-2015 |
| 20160069708 | LINEAR POSITION AND ROTARY POSITION MAGNETIC SENSORS, SYSTEMS, AND METHODS - Embodiments relate to a position sensor comprising a magnetic target. The magnetic target includes a magnetic multipole configured to generate a magnetic field. The magnetic field has three mutually-perpendicular components at a first region. Sensor elements can be configured to measure these field components at the first region. In embodiments, comparing the amplitudes of the components can be used to determine a global position, and the instantaneous values of these components can be used to determine a local position. | 03-10-2016 |
| 20160069710 | LINEAR POSITION AND ROTARY POSITION MAGNETIC SENSORS, SYSTEMS, AND METHODS - Embodiments relate to a position sensor comprising a magnetic target. The magnetic target includes a magnetic multipole configured to generate a magnetic field. The magnetic field has three mutually-perpendicular components at a first region. Sensor elements can be configured to measure these field components at the first region. In embodiments, comparing the amplitudes of the components can be used to determine a global position, and the instantaneous values of these components can be used to determine a local position. | 03-10-2016 |
| 20160076870 | COMPACT 3D DIRECTION FINDER - An apparatus that includes two non-coinciding arrangements disposed in an two axes Cartesian coordinate system such that each arrangement having a non-zero projection on a respective axis from among the two axes. Each one of the arrangements includes a pair of oppositely directed, spaced apart, co-axial radiating-capable elements, each of the elements being hollow with internal space, and being slotted throughout its entire extent. A first circuitry coupled to the arrangement and being configured to sense an electric field projection along the axis and to convey it to a first feeding terminal. A second circuitry coupled to a slot of the arrangement and being configured to sense a magnetic field's projection along said axis and to convey it to a first feeding terminal. | 03-17-2016 |
| 20160123769 | ROTATION ANGLE AND STROKE AMOUNT DETECTION DEVICE - A rotation angle and stroke amount detection device includes a sensor unit, a rotation angle calculation unit, and a stroke amount calculation unit. The sensor unit includes sin and cos sensors which are magnetic sensing elements that detect changes in a magnetic field caused by rotation or linear displacement of a detection target. The sensor unit outputs sin and cos signals based on detection values of the sin and cos sensors. The rotation angle calculation unit calculates a rotation angle of the detection target based on the sin and cos signals output by the sensor unit. The stroke amount calculation unit calculates a stroke amount of the detection target based on the same signals as those used by the rotation angle calculation unit, i.e., the sin and cos signals. Accordingly, the configuration of the sensor unit may be simplified and the physical size of the device may be reduced. | 05-05-2016 |
