MAGNETIC DETECTION DEVICE AND METHOD FOR PRODUCING SAME

Title:

MAGNETIC DETECTION DEVICE AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2015/170509

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a magnetic detection device that can be smaller and thinner. This magnetic detection device (1) is provided with a substrate (S), and a first magneto-impedance element (MI element) that is disposed on one surface side of the substrate and is composed of a first magneto-sensitive wire (W1) that extends and is sensitive to an external magnetic field component of a first axial direction, and a first detection coil (C1) that loops around the first magneto-sensitive wire. The first detection coil of the present invention is composed of a left-side coil section (C11) and right-side coil section (C12) which co-exist along the first magneto-sensitive wire, and is provided with a magnetic field direction change body (F1) which is composed of a soft magnetic material and which is at least partially disposed on another surface side of the substrate or inside the substrate between the left-side coil section and right-side coil section and with which an external magnetic field component of a third axial direction intersecting with the substrate can be changed to a measured magnetic field component of the first axial direction. The external magnetic field component of the third axial direction can then be detected on the basis of a left-side output obtained from the left-side coil section and a right-side output obtained from the right-side coil section.

More Like This:

JPH1114722	MAGNETISM DETECTING DEVICE
JPH01138411	RESPONSIVE ELEMENT AND ITS PRODUCTION
WO/1995/000858	BIOMAGNETOMETER WITH SOLID CONDUCTION COOLING

Inventors:

YAMAMOTO MICHIHARU (JP)
NAGAO TOMOHIKO (JP)

Application Number:

PCT/JP2015/057237

Publication Date:

November 12, 2015

Filing Date:

March 12, 2015

Export Citation:

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Assignee:

AICHI STEEL CORP (JP)

International Classes:

G01R33/02; G01C17/30; H01L43/00

Domestic Patent References:

WO2010110456A1

2010-09-30

Foreign References:

JPH1022545A	1998-01-23
JP5066576B2	2012-11-07
JP2008134236A	2008-06-12
JPS63152185A	1988-06-24
JP2010101648A	2010-05-06
JP2014153309A	2014-08-25
JPS4814275U	1973-02-17
JP2001013231A	2001-01-19

Other References: