INDUCTIVE SENSOR DEVICE WITH LOCAL ANALOG-TO-DIGITAL CONVERTER

    公开(公告)号:WO2020033022A1

    公开(公告)日:2020-02-13

    申请号:PCT/US2019/030848

    申请日:2019-05-06

    Abstract: A position sensor device includes a sensor head with a sensor coil, and an analog-to-digital (A/D) converter for digitizing output from the sensor coil, and sending the digital input to electronics of the device for further processing. The A/D converter is located closer to the coil than it is to the electronics, which may be in an electronics box mounted remotely from the sensor head. The A/D converter may be a part of the sensor head, may be adjacent to the sensor head, and/or may be connected to the sensor coil by an analog output cable. The analog output cable between the sensor coil and the A/D converter may be of negligible length (and of negligible capacitance), and in any event may be shorter than a digital output cable between the A/D converter and the electronics.

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