ROTATION DETECTION DEVICE - HIROSE ELECTRIC CO LTD

Title:

ROTATION DETECTION DEVICE

Document Type and Number:

WIPO Patent Application WO/2016/021074

Kind Code:

A1

Abstract:

[Problem] To reduce the axial size of a rotation detection device. [Solution] A rotation detection device 1 is provided with: a housing 2; a shaft 3 that is rotatably supported by the housing 2 and has magnets 4a to 4c fixed thereto; and magnetic field detection units 5a to 5d that are for detecting the magnetic fields of the magnets 4a to 4c, are provided with a magnetic element 51 and coil 52 that generate a large Barkhausen effect, have longitudinal directions that are parallel to tangents of the circular rotation paths R1 to R4 of the magnets 4a to 4c, and are fixed to the housing 2 so as to be capable of opposing the magnets 4a to 4c in the radial direction of the circular rotation paths R to R4.

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Inventors:

OYAMA SHOJI (JP)
KASUGA ATSUSHI (JP)
YOSHIDOMI SHIRO (JP)

Application Number:

PCT/JP2014/071111

Publication Date:

February 11, 2016

Filing Date:

August 08, 2014

Export Citation:

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Assignee:

HIROSE ELECTRIC CO LTD (JP)

International Classes:

G01D5/245

Foreign References:

JP2014137232A	2014-07-28
JP2009147778A	2009-07-02
JP2014048251A	2014-03-17
JP2014112113A	2014-06-19
JPH11178284A	1999-07-02

Attorney, Agent or Firm:

MASUDA Hirofumi et al. (JP)
Hirofumi Masuda (JP)

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