Title:
MEASUREMENT SYSTEM, CONVERSION COEFFICIENT ACQUISITION DEVICE, AND VOLTAGE MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/239144
Kind Code:
A1
Abstract:
This wearable measurement system 1 comprises a voltage measurement device 10 and a conversion coefficient acquisition device 20 and measures the voltage to ground of electromagnetic noise produced in a cable W. The voltage measurement device 10 comprises a lower electrode 12, an upper electrode 11 that is disposed so as to face the lower electrode 12, and a voltage measurement circuit 13 that is connected between the lower electrode 12 and upper electrode 11. The conversion coefficient acquisition device 20 comprises a lower electrode 22, a lower electrode 23 that is disposed side by side with and at the same height as the lower electrode 22, an upper electrode 21 that is disposed so as to face the lower electrodes 22, 23, a voltage measurement circuit 24 that is connected between the lower electrode 22 and upper electrode 21, and an oscillator circuit 25 that is connected to the lower electrode 23 and upper electrode 21 and outputs a signal of a prescribed frequency. The lower electrodes 12, 22, 23 of the voltage measurement device 10 and conversion coefficient acquisition device 20 have container-type shapes comprising a bottom surface and lateral walls around the bottom surface.
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Inventors:
ARAI NARUTO (JP)
MARUYAMA MASATO (JP)
KATO JUN (JP)
MARUYAMA MASATO (JP)
KATO JUN (JP)
Application Number:
PCT/JP2021/018037
Publication Date:
November 17, 2022
Filing Date:
May 12, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G01R15/06; G01R19/00
Domestic Patent References:
| WO2020149135A1 | 2020-07-23 | |||
| WO2021029040A1 | 2021-02-18 |
Foreign References:
| JPS58135845U | 1983-09-12 | |||
| JPH10246647A | 1998-09-14 | |||
| US5293113A | 1994-03-08 | |||
| US6549385B1 | 2003-04-15 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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