Proximity detector
    1.
    发明授权

    公开(公告)号:US10604353B2

    公开(公告)日:2020-03-31

    申请号:US16374242

    申请日:2019-04-03

    发明人: Todd Steinbrueck

    摘要: A proximity detector includes a sensor providing a proximity reading. The proximity detector is capable of comparing the reading to a rising threshold level and a falling threshold level, wherein the falling threshold level is less than the rising threshold level. The proximity detector continuously stores a minimum reading value for the proximity reading. The proximity detector will report the presence of granular material only if the proximity reading remains less than the falling threshold level and within an epsilon value of the minimum reading value for a predetermined period of time.

    Proximity detector
    2.
    发明授权

    公开(公告)号:US10336552B1

    公开(公告)日:2019-07-02

    申请号:US15476586

    申请日:2017-03-31

    发明人: Todd Steinbrueck

    摘要: A proximity detector includes a sensor providing a proximity reading. The proximity detector is capable of comparing the reading to a rising threshold level and a falling threshold level, wherein the falling threshold level is less than the rising threshold level. The proximity detector continuously stores a minimum reading value for the proximity reading. The proximity detector will report the presence of granular material only if the proximity reading remains less than the falling threshold level and within an epsilon value of the minimum reading value for a predetermined period of time.

    Proximity detector
    3.
    发明授权

    公开(公告)号:US11099122B1

    公开(公告)日:2021-08-24

    申请号:US16800849

    申请日:2020-02-25

    摘要: A proximity detector includes a sensor providing a proximity reading. The proximity detector is capable of comparing the reading to a rising threshold level and a falling threshold level, wherein the falling threshold level is less than the rising threshold level. The proximity detector filters the proximity reading through three low pass filters using a three different time constants to generate three filtered readings. While the proximity detector is in the no material present state, the proximity detector will enter the material present state when the second filtered reading is less than the difference between the first filtered reading and the falling threshold. While the proximity detector is in the material present state, the proximity detector enters the no material present state when the third filtered reading is greater than the sum of the first filtered reading and the rising threshold.

    Calibrated load cell
    4.
    发明授权

    公开(公告)号:US11630018B2

    公开(公告)日:2023-04-18

    申请号:US17205312

    申请日:2021-03-18

    IPC分类号: G01L25/00 G01L1/22

    摘要: A calibrated load cell includes a monolithic load beam having a first region, a second region on a distal end of the load beam from the first region for receiving a force from a load, and a third region arranged between the first and second regions, wherein the third region comprises a recess on one side of the load beam. A strain gauge is arranged in the recess for detecting a deformation of the third region from the load and for generating a strain gauge output signal proportional to the deformation of the third region. The load cell also includes a microcontroller arranged in the recess for receiving and processing the strain gauge output signal to produce a load cell output signal that represents the load on a load cell output cable. The microcontroller transforms the strain gauge output signal based on calibration parameters to produce the load cell output signal as a calibrated load cell output signal.