Title:
CURRENT MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/230753
Kind Code:
A1
Abstract:
A current measurement device that comprises: at least four triaxial magnetism sensors that are arranged to have prescribed positional relationships and such that the magnetism-sensing directions thereof are parallel to each other; and a computation unit that, on the basis of detection results from the at least four triaxial magnetism sensors and the positional relationships between the at least four triaxial magnetism sensors, finds the current flowing in a pair of measured conductors that are arranged in proximity to each other and have oppositely directed current flowing therein.
Inventors:
TAKENAKA KAZUMA (JP)
ISHIKAWA TETSUYA (JP)
TERAO MINAKO (JP)
OGAWA KOTARO (JP)
KOBAKO SAKI (JP)
NOGUCHI NAOKI (JP)
ISHIKAWA TETSUYA (JP)
TERAO MINAKO (JP)
OGAWA KOTARO (JP)
KOBAKO SAKI (JP)
NOGUCHI NAOKI (JP)
Application Number:
PCT/JP2020/018802
Publication Date:
November 19, 2020
Filing Date:
May 11, 2020
Export Citation:
Assignee:
YOKOGAWA ELECTRIC CORP (JP)
International Classes:
G01R19/00; G01R15/20
Domestic Patent References:
| WO2019167565A1 | 2019-09-06 | |||
| WO2011155527A1 | 2011-12-15 |
Foreign References:
| JP2005049118A | 2005-02-24 | |||
| JP2014085248A | 2014-05-12 | |||
| US20110006802A1 | 2011-01-13 | |||
| US20100264905A1 | 2010-10-21 | |||
| US20150323585A1 | 2015-11-12 | |||
| JP2019091311A | 2019-06-13 | |||
| JP2005055300A | 2005-03-03 | |||
| JP2011164019A | 2011-08-25 |
Other References:
See also references of EP 3971587A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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