| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-contact type electroscope of compact size, having enhanced detection sensitivity.SOLUTION: An electroscope 100 detects the charging state of a live part (wiring 910) charged with a direct current voltage converted from an alternate current. A receiving part 110 receives signals which include harmonic frequency components from a magnetic field which includes harmonic frequency components caused from the fundamental frequency of the alternate current. A detection part 120 detects the charging state of a live part corresponding to the signal intensity of the harmonic frequency components included in the received signals. |
