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1. 发明申请

US20190234763A1 MAGNETIC FIELD SENSOR HAVING COMPENSATION FOR MAGNETIC FIELD SENSING ELEMENT PLACEMENT 审中-公开
公开(公告)号：US20190234763A1
公开(公告)日：2019-08-01
申请号：US15883721
申请日：2018-01-30
申请人： ALLEGRO MICROSYSTEMS, LLC
发明人： Andrea Foletto , Rémy Lassalle-Balier , Yannick Vuillermet , Paul A. David , Jeffrey Eagen
IPC分类号： G01D5/14 , G01R33/09 , G01D5/165
CPC分类号： G01D5/145 , G01D5/165 , G01R33/025 , G01R33/09 , G01R33/093
摘要： Methods and apparatus for a sensor system having a first magnetic field sensing element with first and second segments where the first and second segments are located at positions to generate magnetic field bias in opposite directions for reducing sensitivity due to misalignment of the first and second segments. A processing module is configured to receive an output of the magnetic field sensing element.

2. 发明申请

US20190025081A1 A MAGNETIC FIELD SENSOR TO DETECT SPEED AND DIRECTION OF ANGULAR ROTATION OF A ROTATING MAGNETIC STRUCTURE 审中-公开
公开(公告)号：US20190025081A1
公开(公告)日：2019-01-24
申请号：US15655377
申请日：2017-07-20
申请人： Allegro MicroSystems, LLC
发明人： Thomas Kerdraon , Gary T. Pepka , Dominikus Maisl , Manfred Busch
IPC分类号： G01D5/14 , G01P3/487 , G01R33/07 , G01D5/165 , G01R33/09
CPC分类号： G01D5/145 , G01D5/165 , G01P3/487 , G01P13/045 , G01R33/072 , G01R33/091
摘要： In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect an angular speed and an angular direction of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. The output signal indicates the angular direction and the speed.

3. 发明申请

US20180143151A1 POTENTIOMETER TESTING SYSTEMS AND METHODS 审中-公开
公开(公告)号：US20180143151A1
公开(公告)日：2018-05-24
申请号：US15356338
申请日：2016-11-18
申请人： THE BOEING COMPANY
发明人： Suhat Limvorapun , Thomas A. Webb , Randy L. Brandt
IPC分类号： G01N27/04
CPC分类号： G01D5/165 , G01D18/00 , G01R31/043
摘要： A system includes analysis circuitry. The analysis circuitry is configured to determine a first electrical resistance between a first terminal of a potentiometer and a second terminal of the potentiometer. The analysis circuitry is additionally configured to determine a second electrical resistance between the first terminal and a wiper terminal of the potentiometer. The analysis circuitry is additionally configured to determine a third electrical resistance between the second terminal and the wiper terminal. The analysis circuitry is additionally configured to determine a wiper resistance of the potentiometer based on the first electrical resistance, the second electrical resistance, and the third electrical resistance. The system additionally includes an output interface coupled to the analysis circuitry and configured to generate an output indicative of the wiper resistance.

4. 发明申请

US20180087926A1 MAGNETIC ANGLE SENSOR DEVICE AND METHOD OF OPERATION 审中-公开
公开(公告)号：US20180087926A1
公开(公告)日：2018-03-29
申请号：US15715302
申请日：2017-09-26
申请人： Infineon Technologies AG
发明人： Udo Ausserlechner
IPC分类号： G01D5/14 , G01D5/165
CPC分类号： G01D5/145 , G01D5/165 , G01D5/245
摘要： A magnetic angle sensor device is suggested comprising a shaft that is arranged rotatably around a rotation axis, at least one permanent magnet, a stator and two magnetic angle sensors, which are fixed to the stator, wherein the shaft is arranged rotatably against the stator, wherein the at least one permanent magnet is connected to the shaft, and wherein the at least one permanent magnet is arranged to apply magnetic fields at the two magnetic angle sensors with different directions of diametrical magnetic field components.

5. 发明申请

US20170314966A1 ROTATION ANGLE SENSOR SYSTEM AND METHOD 审中-公开
公开(公告)号：US20170314966A1
公开(公告)日：2017-11-02
申请号：US15649913
申请日：2017-07-14
申请人： Infineon Technologies AG
发明人： Leo Aichriedler , Peter Slama
IPC分类号： G01D5/165 , G01D5/14 , G01R15/20 , G01R21/08 , G01R33/07 , G01R33/06
CPC分类号： G01D5/165 , G01D5/142 , G01D5/145 , G01R15/20 , G01R15/202 , G01R21/08 , G01R33/06 , G01R33/07
摘要： Rotational angle sensor systems and methods are provided for detecting an angular position of a movable structure. The movable structure may be configured to rotate about an axis of rotation between a first rotational position and a second rotational position. A magnet may have a magnetic field pattern with a magnetic field orientation and an angle sensor may be configured to detect the magnetic field pattern and generate one or more signals, based on the magnetic field orientation, corresponding to a rotational position of the movable structure. Additionally, a first one of the magnet and the angle sensor is configured to rotate about the axis of rotation relative to a second one of the magnet and the angle sensor that is rotationally fixed such that the magnetic field orientation changes relative to the angle sensor as the movable structure rotates about the axis of rotation.

6. 发明申请

US20170167897A1 ANGLE MEASUREMENT DEVICE AND ELECTRIC MOTOR 审中-公开
公开(公告)号：US20170167897A1
公开(公告)日：2017-06-15
申请号：US15372856
申请日：2016-12-08
申请人： Rheintacho Messtechnik GmbH
发明人： Elmar Lackermaier , Frank Henninger
IPC分类号： G01D5/244 , H02K11/215 , G01D5/20 , G01D5/14 , G01D5/165
CPC分类号： G01D5/24428 , G01D5/142 , G01D5/147 , G01D5/165 , G01D5/2006 , G01D5/2457 , H02K11/215
摘要： An angle measurement device for an electric motor, including an angle disk which is mountable in a rotationally fixed manner to a shaft. Two measurement tracks are formed on the angle disk having differing angular resolutions with respect to a rotational movement of the angle disk. A sensor device is provided with which the two measurement tracks are readable in order to generate at least one angle-dependent signal for each of the measurement tracks of the two measurement tracks. The angle disk has, at least in a region of the measurement tracks, a magnetically conductive material which defines the respective angular resolution by way of a respective configuration, and the sensor device has at least one biased magnetic field sensor.

7. 发明授权

US09606194B2 Off-center angle measurement system 有权
公开(公告)号：US09606194B2
公开(公告)日：2017-03-28
申请号：US14286607
申请日：2014-05-23
申请人： Infineon Technologies AG
发明人： Wolfgang Granig , Dirk Hammerschmidt , Udo Ausserlechner
IPC分类号： G01B7/30 , G01R33/06 , G01D5/14
CPC分类号： G01D5/145 , G01D5/165 , G01R33/06
摘要： A method for measuring an angular position of a rotating shaft, the method including providing a magnetic field which rotates with the shaft about an axis of rotation, positioning an integrated circuit having first and second magnetic sensing bridges within the magnetic field at a radially off-center position from the axis of rotation, the first and second magnetic sensing bridges respectively providing first and second signals representative of first and second magnetic field directions, the integrated circuit having a set of adjustment parameters for modifying attributes of the first and second signals, modifying values of the set of adjustment parameters until errors in the first and second signals are substantially minimized, and determining an angular position of the shaft based on the first and second signals.

8. 发明申请

US20160334242A1 DISCRETE MAGNETIC ANGLE SENSOR DEVICE, A MAGNETIC ANGLE SENSOR ARRANGEMENT, A METHOD FOR GENERATING AN ANGLE SIGNAL AND A METHOD FOR PROVIDING A SENSOR SIGNAL 审中-公开
公开(公告)号：US20160334242A1
公开(公告)日：2016-11-17
申请号：US15223586
申请日：2016-07-29
申请人： Infineon Technologies AG
发明人： Udo Ausserlechner
IPC分类号： G01D5/14 , G01D5/165
CPC分类号： G01B7/30 , G01D5/145 , G01D5/147 , G01D5/165 , G01R33/02 , G01R33/022
摘要： A discrete magnetic angle sensor device according to an embodiment includes a first magnetic field gradiometer and a second magnetic field gradiometer. The first magnetic field gradiometer and the second magnetic field gradiometer are of different types of a group of gradiometer types. An embodiment may improve an accuracy of a determination of a rotation angle.

9. 发明申请

US20160327412A1 Nonvolatile Rotation Sensor With Magnetic Particle in Serpentine Track 有权
标题翻译：非磁性旋转传感器在蛇纹石轨道磁性粒子
公开(公告)号：US20160327412A1
公开(公告)日：2016-11-10
申请号：US14705164
申请日：2015-05-06
申请人： Teleldyne Scientific & Imaging, LLC.
发明人： Weiya Zhang , Brian Gregory
IPC分类号： G01D5/245
CPC分类号： G01D5/2454 , G01D5/165 , G01D5/2046 , G01D5/2053 , G01D5/2405
摘要： A nonvolatile, absolute multi-turn rotation sensor employs a magnetic particle that is indexed around a serpentine channel with successive passes of a magnet caused by rotation of the rotation sensor shaft. Sensors at regular locations around the track allow determination of the position of the magnetic particle and thus the total number of revolutions of the shaft.
摘要翻译：非挥发性，绝对多圈旋转传感器采用磁性粒子，该磁性颗粒由绕旋转传感器轴的旋转引起的磁体的连续通过而绕蛇形通道分度。在轨道周围的规则位置处的传感器允许确定磁性颗粒的位置，从而确定轴的总转数。

10. 发明申请

US20160258787A1 POSITION DETECTION APPARATUS, APPARATUS INCLUDING THE SAME AND POSITION DETECTION METHOD 审中-公开
标题翻译：位置检测装置，包括它们的装置和位置检测方法
公开(公告)号：US20160258787A1
公开(公告)日：2016-09-08
申请号：US15056740
申请日：2016-02-29
申请人： CANON KABUSHIKI KAISHA
发明人： Hirofumi Honda , Daisuke Ishikawa , Toshihiko Tomosada
IPC分类号： G01D5/347 , G01D5/16
CPC分类号： G01D5/34776 , G01D5/165 , G01D5/24476
摘要： The position detection apparatus includes the first optical position detector used with an optical scale having periodic patterns. The first position detector receives lights from the periodic patterns when moving relatively to the optical scale with a movement of a movable member to generate first detection signals respectively changing at periods corresponding to periods of the periodic patterns. The second non-optical position detector generates a second detection signal changing with the movement of the movable member. The calculator produces a first position signal by using the first detection signals, produces a second position signal whose resolution is different from that of the first position signal, by using the second detection signal, and performs a calculation for combining the first and second position signals together to produce an absolute position signal.
摘要翻译：位置检测装置包括与具有周期性图案的光学秤一起使用的第一光学位置检测器。第一位置检测器通过可移动构件的移动而相对于光学秤移动时从周期性图案接收光，以产生分别在对应于周期性图案的周期的周期改变的第一检测信号。第二非光学位置检测器产生随着可移动部件的运动而改变的第二检测信号。计算器通过使用第一检测信号产生第一位置信号，通过使用第二检测信号产生分辨率不同于第一位置信号的第二位置信号，并且执行用于组合第一和第二位置信号的计算一起产生绝对位置信号。

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