Title:
ANGLE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/002126
Kind Code:
A1
Abstract:
Provided is an angle detection device capable of detecting the angle with high sensitivity by a very simple assembly process without requiring complicated processing. The angle detection device is provided with: a rotor (5) which is formed by a disk plate body produced from a magnetic substance having uniaxial magnetic anisotropy, the disk plate body rotating around a center point within the disk plate surface; a stator (3) which is provided to face the plate surface of the disk plate body of the rotor (5), has approximately the same external shape as that of the rotor, and is divided into a plurality of fan-shaped regions, and in which an exciting coil or a detection coil is wound along the outer periphery of each of the divided regions; and a back yoke (2) which is provided to face the disk plate body of the stator (3) on the reverse side of the surface on which the rotor (5) is provided with the stator (3) interposed therebetween and has approximately the same external shape as that of the stator.
Inventors:
SASADA Ichiro (National University Corporation 6-10-1, Hakozaki, Higashi-ku, Fukuoka-sh, Fukuoka 81, 〒8128581, JP)
Application Number:
JP2011/063249
Publication Date:
January 05, 2012
Filing Date:
June 09, 2011
Export Citation:
Assignee:
Kyushu University, National University Corporation (6-10-1, Hakozaki Higashi-ku, Fukuoka-sh, Fukuoka 81, 〒8128581, JP)
国立大学法人九州大学 (〒81 福岡県福岡市東区箱崎６丁目１０番１号 Fukuoka, 〒8128581, JP)
国立大学法人九州大学 (〒81 福岡県福岡市東区箱崎６丁目１０番１号 Fukuoka, 〒8128581, JP)
International Classes:
G01D5/20; G01B7/30
Attorney, Agent or Firm:
HIRAI Yasuo (Daihakata Bldg. 9F 20-1, Hakataekimae 2-chome Hakata-ku, Fukuoka-sh, Fukuoka 11, 〒8120011, JP)
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Claims:
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