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: 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: 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: 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.