Magnetic angle sensing system and method for detecting a rotation angle of a magnetic field source

    公开(公告)号:US10801828B2

    公开(公告)日:2020-10-13

    申请号:US15848139

    申请日:2017-12-20

    发明人: Udo Ausserlechner

    摘要: A magnetic angle sensing system for detecting a rotation angle of a magnetic field source arranged rotatably around a rotation axis, the magnetic angle sensing system including at least two magnetic field sensing elements that are located in/on a plane, are not arranged on a single straight line through the rotation axis, and are configured to provide output signals that are functions of the same magnetic field component which is in parallel to the rotation axis. The system also including a processor that is arranged to determine the rotation angle from an angle between a pointer and a reference direction, wherein the pointer is determined based on the output signals of the at least two magnetic field sensing elements.

    Long range capacitive gap measurement in a wafer form sensor system

    公开(公告)号:US10794681B2

    公开(公告)日:2020-10-06

    申请号:US16121191

    申请日:2018-09-04

    摘要: Embodiments disclosed herein include a sensor wafer. In an embodiment, the sensor wafer comprises a substrate, wherein the substrate comprises a first surface and a second surface opposite the first surface. In an embodiment, the sensor wafer further comprises a first conductive pad with a first surface area, wherein the first conductive pad has a surface that is substantially coplanar with the first surface of the substrate. In an embodiment, the sensor wafer further comprises a second conductive pad with a second surface area that is smaller than the first surface area, wherein the second conductive pad has a surface that is substantially coplanar with the first surface of the substrate.

    Differential magnetic proximity sensor

    公开(公告)号:US10794680B2

    公开(公告)日:2020-10-06

    申请号:US16086406

    申请日:2017-03-17

    发明人: Lutz May

    IPC分类号: G01B7/14 G01B7/00

    摘要: A distance measuring device (100) is provided, comprising a first sensing module (110), a second sensing module (120), a reference device (130), and an evaluating module (140). The first sensing module and the second sensing module are arranged on a horizontal base line (150). Each one of the first and second sensing module is configured to detect the strength of a magnetic field (50) and each one of the first and second sensing module has a first sensing direction (y) and a second sensing direction (x).

    Winding and scale configuration for inductive position encoder

    公开(公告)号:US10775199B2

    公开(公告)日:2020-09-15

    申请号:US15910478

    申请日:2018-03-02

    发明人: Ted Staton Cook

    摘要: A pitch compensated inductive position encoder includes a scale comprising first and second tracks including periodic patterns having a wavelength W, a detector, and signal processing. The second track pattern may be shifted along the measuring direction by a pattern offset STO relative to the first track pattern. In the detector, first-track and second-track field generating coil portions generate fields in first and second interior areas aligned with the first and second pattern tracks, respectively. First and second sensing coil configurations that are aligned with the first and second tracks, respectively, are offset relative to one another by STO+/−0.5*W along the measuring direction. In various embodiments, the first and second sensing coil configurations may have the same sequence of individual coil polarities if the generated field polarities are different, and may have inverted or opposite sequences if the generated field polarities are the same.

    Proximity sensor
    85.
    发明授权

    公开(公告)号:US10746893B2

    公开(公告)日:2020-08-18

    申请号:US15892349

    申请日:2018-02-08

    申请人: OMRON Corporation

    摘要: A proximity sensor that outputs presence or absence of a detection object or a position of the detection object as a detection result includes: a detection part configured to include a detection coil and a capacitor; an oscillation circuit configured to excite the detection part; an analog/digital conversion circuit configured to detect a signal change occurring in the detection part and output a digital signal indicating the detected signal change; a temperature detection part configured to detect a temperature inside a casing of the proximity sensor; a storage part configured to store a characteristic parameter unique to the proximity sensor in advance; a control calculation part configured to process a digital signal from the analog/digital conversion circuit to calculate a signal indicating a distance to the detection object, compensate the calculated signal using the characteristics parameter stored in the storage part, and output the compensated signal as the detection result.

    OPERATION INPUT DEVICE AND DOOR HANDLE
    87.
    发明申请

    公开(公告)号:US20200207189A1

    公开(公告)日:2020-07-02

    申请号:US16818101

    申请日:2020-03-13

    摘要: An operation input device includes a resistance element to generate a capacitance between an operating medium and the resistance element in response to an approach of the operating medium to the resistance element, and a power source to supply electric charge to one end and the other end of the resistance element. A first electric unit measures a first electric charge transfer amount supplied to the one end of the resistance element in response to generation of the capacitance. A second unit measures a second electric charge transfer amount supplied to the other end of the resistance element in response to generation of the capacitance. A controller is connected to the first and second units, and detects a position of the operating medium in a direction perpendicular to a surface of the resistance element based on a sum of the first and second electric charge transfer amounts.

    Motion determination device and motion determination method

    公开(公告)号:US10669767B2

    公开(公告)日:2020-06-02

    申请号:US16318648

    申请日:2017-07-12

    摘要: Provided are a motion determination device and a method capable of correctly determining a kicking motion by a user about to open or close a gate of a vehicle. The motion determination device includes sensors respectively mounted on positions spaced apart from each other and detecting approach of an object, and a determination device which determines that the predetermined kicking motion has been performed, when each detection value shows a predetermined pattern, a time until each of the detection values becomes less than a first threshold value after it becomes the first threshold value or more is within a predetermined time, and a ratio of a maximum value among detection values by a first sensor and a maximum value among the detection values by a second sensor different from the first sensor is within a predetermined range.

    SENSOR MISALIGNMENT MEASURING DEVICE
    89.
    发明申请

    公开(公告)号:US20200158489A1

    公开(公告)日:2020-05-21

    申请号:US16750650

    申请日:2020-01-23

    申请人: INVENSENSE, INC.

    摘要: The present disclosure relates to measuring misalignment between layers of a semiconductor device. In one embodiment, a device includes a first conductive layer; a second conductive layer; one or more first electrodes embedded in the first conductive layer; one or more second electrodes embedded in the second conductive layer; a sensing circuit connected to the one or more first electrodes; and a plurality of time-varying signal sources connected to the one or more second electrodes, wherein the one or more first electrodes and the one or more second electrodes form at least a portion of a bridge structure that exhibits an electrical property that varies as a function of misalignment of the first conductive layer and the second conductive layer in an in-plane direction.

    Electromagnetic induction type position detector

    公开(公告)号:US10605627B2

    公开(公告)日:2020-03-31

    申请号:US16073932

    申请日:2016-04-13

    IPC分类号: G01D5/20 G01B7/00 H01F30/08

    摘要: A transmission winding portion having a positive-polarity loop and a negative-polarity loop alternately formed so as to partially overlap with each other in the extending direction of a scale, arrangement of the positive-polarity loop and the negative-polarity loop being adjusted such that the positive-polarity loop and the negative-polarity loop on both sides with respect to the intermediate position in the longitudinal direction of the transmission winding portion are inverted; a first reception winding that covers the transmission winding portion in the width direction of the scale, that has a length, corresponding to the cycle of the cycle pattern of the transmission winding portion, and that is formed into a rectangular pattern; a second reception winding having a shape symmetrical to the first reception winding with respect to the intermediate position in the longitudinal direction of the transmission winding portion.