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Title:
MAGNETIC SENSOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/096862
Kind Code:
A1
Abstract:
A magnetic sensor device according to the present invention includes: a magnet (4) that forms a magnetic field on a transportation path of a detection target object (21); a magnetoresistive effect element (2) that outputs a change in the magnetic field in the form of a resistance change; a case (6) that accommodates or holds the permanent magnet (4) and the magnetoresistive effect element (2); a cover (1) that covers the magnetoresistive effect element (2) to form a transportation path face (1b), which is a face following the transportation path; and a signal amplification substrate (9) having a signal amplification IC (8) disposed in a plane intersecting the transportation path face, the signal amplification substrate (9) amplifying, by means of the signal amplification IC (8), the resistance change output from the magnetoresistive effect element (2), corresponding to the change in the magnetic field due to the detection target object (21) transported on the transportation path face (1b).

Inventors:
KAHARA HIROAKI (JP)
OKADA MASAAKI (JP)
KUNIEDA TATSUYA (JP)
OGOMI TOMOKAZU (JP)
MATSUI HIDEKI (JP)
YOSHIOKA SADAAKI (JP)
Application Number:
PCT/JP2017/038318
Publication Date:
May 31, 2018
Filing Date:
October 24, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01R33/09; G01R33/02; G07D7/00; G07D7/04
Domestic Patent References:
WO2015022864A12015-02-19
Foreign References:
JP2005030872A2005-02-03
JP2001330471A2001-11-30
JPH11304896A1999-11-05
JP2003035701A2003-02-07
JP2009003678A2009-01-08
Attorney, Agent or Firm:
KIMURA Mitsuru (JP)
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