Title:
NON-CONTACT VOLTAGE OBSERVATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/090478
Kind Code:
A1
Abstract:
The present invention comprises a probe electrode (10), an impedance circuit (14) that is connected to the probe electrode (10) at an input end and simulates the complex impedance from a cable conductor (2a) to the input end, and a first operational amplifier (15) that is connected to ground at a positive electrode input terminal, is connected to the input end of the impedance circuit (14) at a negative electrode input terminal, and outputs alternating-current voltage that has the opposite phase of alternating-current voltage that has been applied to the cable conductor (2a).
Inventors:
AKEBOSHI YOSHIHIRO (JP)
TAMAKI YUZO (JP)
NOBE YUKI (JP)
TAMAKI YUZO (JP)
NOBE YUKI (JP)
Application Number:
PCT/JP2019/043894
Publication Date:
May 14, 2021
Filing Date:
November 08, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01R19/00; G01R15/16
Foreign References:
| JP2019174129A | 2019-10-10 | |||
| JP2018132346A | 2018-08-23 | |||
| JPS6415669A | 1989-01-19 | |||
| US20190081601A1 | 2019-03-14 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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