Methods and apparatuses for speed and/or position sensing

    公开(公告)号:US12176962B2

    公开(公告)日:2024-12-24

    申请号:US17335423

    申请日:2021-06-01

    Abstract: A system includes a movable part that is rotatably movable, the movable part comprising a first portion and a second portion; transceiver circuitry configured to transmit a radio signal towards the movable part and to receive a receive radio signal from the movable part; and evaluation circuitry configured to determine a rotational position of the movable part based on the receive radio signal. The first portion of the movable part has a first electromagnetic reflectivity for the radio signal and the second portion of the movable part has a second electromagnetic reflectivity for the radio signal. The first electromagnetic reflectivity differs from the second electromagnetic reflectivity.

    METHODS AND APPARATUSES FOR SPEED AND/OR POSITION SENSING

    公开(公告)号:US20210288725A1

    公开(公告)日:2021-09-16

    申请号:US17335423

    申请日:2021-06-01

    Abstract: A system includes a movable part that is rotatably movable, the movable part comprising a first portion and a second portion; transceiver circuitry configured to transmit a radio signal towards the movable part and to receive a receive radio signal from the movable part; and evaluation circuitry configured to determine a rotational position of the movable part based on the receive radio signal. The first portion of the movable part has a first electromagnetic reflectivity for the radio signal and the second portion of the movable part has a second electromagnetic reflectivity for the radio signal. The first electromagnetic reflectivity differs from the second electromagnetic reflectivity.

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