Calibration methods for voltage sensing devices

    公开(公告)号:US09759798B2

    公开(公告)日:2017-09-12

    申请号:US14276253

    申请日:2014-05-13

    CPC classification number: G01R35/005 G01R15/144 G01R19/2503

    Abstract: A calibration method for enhancing a measurement accuracy of one or more voltage sensing devices in presence of a plurality of conductors is provided. The method includes operatively coupling at least one voltage sensing device of the one or more voltage sensing devices to a respective conductor of the plurality of conductors and determining a sensed voltage value of the respective conductor using the at least one voltage sensing device The method further includes determining a calibration matrix having cross-coupling factors representative of cross-coupling between an antenna of the at least one voltage sensing device and other conductors of the plurality of conductors and determining a corrected voltage value of the respective conductor by deducting at least in part contributions of the cross-coupling from the sensed voltage value of the respective conductor using the calibration matrix.

    CONTACTLESS VOLTAGE SENSING DEVICES
    13.
    发明申请
    CONTACTLESS VOLTAGE SENSING DEVICES 有权
    无接触式电压传感装置

    公开(公告)号:US20150331017A1

    公开(公告)日:2015-11-19

    申请号:US14276175

    申请日:2014-05-13

    CPC classification number: G01R19/0084 G01R15/06 G01R15/16

    Abstract: A contactless voltage sensing device configured to measure a voltage value of a conductor is provided. The contactless voltage sensing device includes a first impedance element having a first impedance, where the first impedance element is configured to be operatively coupled to the conductor. Further, the contactless voltage sensing device includes an antenna operatively coupled to the first impedance element, a second impedance element having a second impedance, where the second impedance element is formed in part by the antenna and a parasitic impedance element, and where the parasitic impedance element includes a parasitic impedance, and measurement and communication circuitry coupled to the first impedance element to measure the voltage value of the conductor.

    Abstract translation: 提供了一种被配置为测量导体的电压值的非接触式电压感测装置。 非接触式电压感测装置包括具有第一阻抗的第一阻抗元件,其中第一阻抗元件被配置为可操作地耦合到导体。 此外,非接触电压感测装置包括可操作地耦合到第一阻抗元件的天线,具有第二阻抗的第二阻抗元件,其中第二阻抗元件部分地由天线和寄生阻抗元件形成,并且其中寄生阻抗 元件包括寄生阻抗,以及耦合到第一阻抗元件的测量和通信电路,以测量导体的电压值。

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