BAW RESONATOR BASED PRESSURE SENSOR
    2.
    发明申请

    公开(公告)号:US20200212879A1

    公开(公告)日:2020-07-02

    申请号:US16235512

    申请日:2018-12-28

    Abstract: A pressure sensor apparatus is disclosed. The pressure sensor apparatus includes a bulk acoustic wave (BAW) die having a die interface side and a pressure contact side, a sensor BAW resonator and a reference BAW resonator disposed on the die interface side of the BAW die, a control circuit die coupled to the die interface side of the BAW die via an attachment layer, and an extended opening on the pressure contact side that extends into a depth of the BAW die and is generally aligned with the sensor BAW resonator, the extended opening being configured to translate an external pressure on the pressure contact side onto the sensor BAW resonator.

    MAGNETIC FIELD-BASED CURRENT MEASUREMENT
    3.
    发明申请

    公开(公告)号:US20180188293A1

    公开(公告)日:2018-07-05

    申请号:US15395789

    申请日:2016-12-30

    CPC classification number: G01R15/148 G01R15/185 G01R15/207

    Abstract: One example includes a current measurement system. The system includes at least two magnetic field sensors positioned proximal to and in a predetermined arrangement with respect to a current conductor, each of the magnetic field sensors being configured to measure magnetic field associated with a current flowing in the current conductor and provide respective magnetic field measurements. The system also includes a current measurement processor configured to implement a mathematical algorithm based on a Taylor series expansion of the magnetic field measurements to calculate an amplitude of the current based on the mathematical algorithm.

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