Patent ID: 9678115
Date: 2017-06-13
CPC Classifications: G01R

Claim:
1. A contactless voltage sensing device configured to measure a voltage value of a conductor with respect to a voltage potential at a reference surface, said contactless voltage sensing device comprising: a first impedance element having a first impedance value, wherein said first impedance element is configured to be operatively coupled to the conductor; an antenna operatively coupled to said first impedance element; only one parasitic impedance element having a parasitic impedance value, wherein said only one parasitic impedance element is formed between said antenna and the reference surface; a second impedance element having a second impedance value, wherein said second impedance element is formed in part by said antenna and said only one parasitic impedance element, and wherein the second impedance value is higher than the first impedance value by a multiple of about 50 (fifty) to about 10,000 (ten thousand); and measurement and communication circuitry coupled to said first impedance element and configured to measure the voltage value of the conductor.