WHEEL ROTATIONAL-SPEED SENSOR AND FASTENING SYSTEM FOR MOUNTING A WHEEL ROTATIONAL-SPEED SENSOR

    公开(公告)号:US20190101563A1

    公开(公告)日:2019-04-04

    申请号:US16086912

    申请日:2017-03-27

    摘要: A wheel rotational-speed sensor for mounting on a vehicle axle, having a sensor housing and a conductor carrier, for example a leadframe, which is arranged in the sensor housing, having a first surface and a second surface facing away from the first surface, wherein a first wheel rotational-speed sensor element for detecting first physical measurement variables is arranged on the first surface of the conductor carrier, and wherein a second wheel rotational-speed sensor element for detecting second physical measurement variables is arranged on the second surface of the conductor carrier. Specifically, the two sensor elements can detect magnetic fields of a magnetic reading track. The sensors can be AMR, GMR or TMR sensors or Hall elements; the two sensors can be structurally identical or of different design.

    POSITION-MEASURING DEVICE AND METHOD FOR OPERATING A POSITION-MEASURING DEVICE

    公开(公告)号:US20190086241A1

    公开(公告)日:2019-03-21

    申请号:US16121663

    申请日:2018-09-05

    IPC分类号: G01D5/244 G01D5/245

    摘要: A position-measuring device includes a graduation carrier having a measuring graduation disposed thereon. At least one position sensor is configured to generate position-dependent measurement signals by scanning the measuring graduation. A processor is configured to process the position-dependent measurement signals into position signals. An interface is configured to transmit the position signals to subsequent electronics via at least one data channel. At least one motion sensor is configured to generate time-varying measurement signals. A signal analyzer is configured to analyze the measurement signals in the frequency domain dependent on parameters that are transmittable from the subsequent electronics to the interface unit, and to produce result data that is transmittable from the interface unit to the subsequent electronics.

    POSITION DETECTION DEVICE AND POSITION DETECTION METHOD

    公开(公告)号:US20190025092A1

    公开(公告)日:2019-01-24

    申请号:US16134729

    申请日:2018-09-18

    IPC分类号: G01D5/245

    CPC分类号: G01D5/245 G01D5/2415

    摘要: A position detection device includes a fixed element, a movable element, a plurality of first electrodes, a second electrode, a third electrode and a first detection circuit. The movable element is movable relative to the fixed element. The first electrodes are arranged on either the fixed element or the movable element, and the second electrode is on the other of the movable element or the fixed element. The first electrodes include two or more phases with electrical signals having mutually different phases. The third electrode is provided on the fixed element and opposing the electrode that is on the movable element while the movable element is in a prescribed position. The first detection circuit detects when the movable element is in the prescribed position based on electrical signals generated in the second and third electrodes in accordance with the electrical signals supplied to the first electrodes.

    Hall-type Travel Limit Deviation Self-resetting Encoder For Garage Door Machine

    公开(公告)号:US20190003233A1

    公开(公告)日:2019-01-03

    申请号:US16073344

    申请日:2015-11-03

    发明人: Wenying SHAO

    摘要: A Hall-type travel limit deviation self-resetting encoder for a garage door machine, including a nylon worm gear and a driving motor for driving the nylon worm gear to rotate, a motor rotation counting limit mechanism for performing rotation counting limit on a rotor shaft of the driving motor, and a worm gear counting calibration mechanism for calibrating the travel limit deviation of the driving motor; the worm gear counting calibration mechanism includes a worm gear magnet-mounted on the nylon worm gear and a worm gear position Hall element adapted to the worm gear magnet. The encoder is compact in structure and can effectively limit the travel limit deviation of a garage door.

    MAGNETIC SENSOR AND MAGNETIC ENCODER
    77.
    发明申请

    公开(公告)号:US20180364316A1

    公开(公告)日:2018-12-20

    申请号:US16049993

    申请日:2018-07-31

    申请人: TDK Corporation

    IPC分类号: G01R33/09 G01D5/245

    摘要: A magnetic sensor is provided with first and second magnetoresistive effect elements that can detect an external magnetic field. The first and second magnetoresistive effect elements are a plurality of layers of multilayer body including free layers where their magnetization directions vary due to the external magnetic field. Shapes of the first and second magnetoresistive effect elements viewed from the upper side in the lamination direction are different from each other. The first magnetoresistive effect element has a shape that can increase a slope of an output of the first magnetoresistive effect element relative to the change of the external magnetic field. The second magnetoresistive effect element has a shape that can decrease a slope of an output of the second magnetoresistive effect element relative to the change of the external magnetic field compared to the slope of the output of the first magnetoresistive effect element.

    Sensor ring
    78.
    发明授权

    公开(公告)号:US10134516B2

    公开(公告)日:2018-11-20

    申请号:US15343464

    申请日:2016-11-04

    摘要: A sensor ring is provided for a magnetic measuring transducer of an ABS system consisting of at least two annularly arranged functional elements. The first functional element is formed as a ferromagnetic annular disc element with a flat upper side and a flat underside with a multiplicity of openings. The second functional element, as a non-ferromagnetic element, has either been applied on the upper side and/or the underside of the annular disc element and/or has been introduced into the openings, as an annular disc element. The sensor ring is protected from contamination or damage by the non-ferromagnetic covering. The covering may also be produced by encapsulation or filling, wherein the openings in the sensor ring can be filled with plastic and also the side faces can be coated with plastic.

    Magnetic position detection device and magnetic position detection method

    公开(公告)号:US10119841B2

    公开(公告)日:2018-11-06

    申请号:US15507982

    申请日:2014-10-24

    摘要: A magnetic position detection device includes two magnetic scales 1a, 1b on which N and S magnetic poles are disposed alternately, magnetism sensing element groups 2a, 2b for measuring variation in magnetic fields formed respectively by the magnetic scales 1a, 1b, and a position calculation device 3 for calculating absolute positions of magnetism sensing elements 21 on the magnetic scales 1a, 1b from output values output by the magnetism sensing elements 21, wherein a difference between the respective numbers of magnetic poles on the magnetic scales 1a, 1b is 2, and the magnetism sensing elements 21 are disposed such that arrangement intervals between the magnetism sensing elements 21 of the respective magnetism sensing element groups 2a, 2b each take a value obtained by dividing a length of one magnetic pole equally by the number of magnetism sensing elements 21.