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公开(公告)号：US20150331079A1
公开(公告)日：2015-11-19
申请号：US14276253
申请日：2014-05-13
Applicant: General Electric Company
Inventor： Amol Rajaram Kolwalkar , Sameer Dinkar Vartak , Arun Kumar Raghunathan , Abhijeet Arvind Kulkarni , Charles Brendan O'Sullivan
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.
Abstract translation: 提供了一种用于在存在多个导体的情况下增强一个或多个电压感测装置的测量精度的校准方法。 所述方法包括将所述一个或多个电压感测装置的至少一个电压感测装置可操作地耦合到所述多个导体中的相应导体，并使用所述至少一个电压感测装置确定所述相应导体的感测电压值。所述方法还包括 确定具有代表所述至少一个电压感测装置的天线与所述多个导体的其它导体之间的交叉耦合的交叉耦合因子的校准矩阵，并且通过至少部分地贡献来确定相应导体的校正电压值 使用校准矩阵从相应导体的感测电压值进行交叉耦合。
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公开(公告)号：US09678115B2
公开(公告)日：2017-06-13
申请号：US14276175
申请日：2014-05-13
Applicant: General Electric Company
Inventor： Arun Kumar Raghunathan , Amol Rajaram Kolwalkar , Sameer Dinkar Vartak , Abhijeet Arvind Kulkarni , Charles Brendan O'Sullivan
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.
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公开(公告)号：US09759798B2
公开(公告)日：2017-09-12
申请号：US14276253
申请日：2014-05-13
Applicant: General Electric Company
Inventor： Amol Rajaram Kolwalkar , Sameer Dinkar Vartak , Arun Kumar Raghunathan , Abhijeet Arvind Kulkarni , Charles Brendan O'Sullivan
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.
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公开(公告)号：US20150331017A1
公开(公告)日：2015-11-19
申请号：US14276175
申请日：2014-05-13
Applicant: General Electric Company
Inventor： Arun Kumar Raghunathan , Amol Rajaram Kolwalkar , Sameer Dinkar Vartak , Abhijeet Arvind Kulkarni , Charles Brendan O'Sullivan
IPC: G01R19/00 , G01R21/00 , G01R31/302
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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