Title:
測定補助装置、非接触電圧観測装置および非接触電圧観測システム
Document Type and Number:
Japanese Patent JP7003339
Kind Code:
B2
Abstract:
This measurement assistance device (3) calculates a first coupling capacitance, which is produced between a cable conductor (4a) and a probe electrode (21) of a non-contact voltage observation device (2), on the basis of the voltage obtained by voltage-dividing a test voltage signal that has a known AC voltage waveform by the first coupling capacitance, a known capacitance, and a second coupling capacitance produced between the cable conductor (4a) and a probe electrode (31) of the measurement assistance device (3). The structure and size of the probe electrode (31) are matched to the probe electrode (21) such that the first coupling capacitance and second coupling capacitance are similar values within a certain margin of error.
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Inventors:
Myojo Keiyo
Yuzo Tamaki
Yuki Nobe
Yuzo Tamaki
Yuki Nobe
Application Number:
JP2021554537A
Publication Date:
February 10, 2022
Filing Date:
November 08, 2019
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01R19/00; G01R15/16
Domestic Patent References:
| JP2015155801A | ||||
| JP5322958A |
Foreign References:
| WO2016175123A1 | ||||
| US20160187389 | ||||
| US20180252749 |
Attorney, Agent or Firm:
Sanno domestic and foreign patent office