NON-CONTACT VOLTAGE MEASUREMENT DEVICE

摘要

There is provided a non-contact voltage measurement device (1) which can precisely measure a measurement target voltage by suppressing a flow of a leakage current via a parasitic capacitance (C ppL ) produced between an electric field shield (12) and an electric circuit (EC). A drive voltage applying unit (16) applies a voltage generated from an output voltage (V out ) of a low impedance unit (LOW) of the electric circuit (EC) and equal to an input voltage (V in ) of a high impedance unit (HI), to a first electric field shield (12A) coated on the high impedance unit (HI).