Title:
ELECTRIC CURRENT DETECTION DEVICE AND ELECTRIC CURRENT DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/056137
Kind Code:
A1
Abstract:
[Problem] To provide an electric current detection device and an electric current detection method with which a more compact device is possible, and with which it is possible to reduce electromagnetic induction noise caused by electromagnetic induction between wires. [Solution] This device is provided with: magnetism detector elements 3, 4, 5, 6 for detecting the strength of a magnetic field generated by an electric current flowing over an electric current path 1; a detection circuit 7 for detecting, from the output of the magnetism detector elements, the magnitude of the electric current flowing over the electric current path 1; and a plurality of wires 13a, 13b, 13c, 13d, 13e, 13f which are connected to the magnetism detector elements and extend in a direction away from the electric current path 1. The magnetism detector elements 3, 4, 5, 6 are arranged such that the direction of the magnetosensitivity axis lies in a first plane 20 parallel to the conduction direction of the electric current path 1, and moreover parallel to the direction in which the plurality of wires 13a, 13b, 13c, 13d, 13e, 13f extend. The plurality of wires 13a, 13b, 13c, 13d, 13e, 13f are arranged in-plane with a second plane 30/30' orthogonal to the first plane.
Inventors:
NOGUCHI MASAKI (JP)
FUTAKUCHI NAOKI (JP)
OKUYAMA KEN (JP)
FUTAKUCHI NAOKI (JP)
OKUYAMA KEN (JP)
Application Number:
PCT/JP2014/077247
Publication Date:
April 14, 2016
Filing Date:
October 10, 2014
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
G01R15/20
Foreign References:
| JP2014081384A | 2014-05-08 | |||
| JP2012088191A | 2012-05-10 | |||
| JP2010060546A | 2010-03-18 | |||
| JP2008211100A | 2008-09-11 | |||
| JPH0685411A | 1994-03-25 |
Attorney, Agent or Firm:
HIRATA, Tadao (JP)
Tadao Hirata (JP)
Tadao Hirata (JP)
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