Title:
MEASUREMENT ASSISTANCE DEVICE, NON-CONTACT VOLTAGE OBSERVATION DEVICE, AND NON-CONTACT VOLTAGE OBSERVATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/090479
Kind Code:
A1
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:
AKEBOSHI YOSHIHIRO (JP)
TAMAKI YUZO (JP)
NOBE YUKI (JP)
TAMAKI YUZO (JP)
NOBE YUKI (JP)
Application Number:
PCT/JP2019/043895
Publication Date:
May 14, 2021
Filing Date:
November 08, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01R19/00; G01R15/16
Domestic Patent References:
| WO2016175123A1 | 2016-11-03 |
Foreign References:
| JPH05322958A | 1993-12-07 | |||
| JP2015155801A | 2015-08-27 | |||
| US20160187389A1 | 2016-06-30 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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