Title:
DETECTION DEVICE, ROTATION ANGLE DETECTION DEVICE, DETECTION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2016/204205
Kind Code:
A1
Abstract:
The purpose of the present invention is to achieve a magnetic rotation angle sensor or an encoder wherein the influence of a disturbance magnetic field is reduced without using a magnetic shield. Provided are a detection device that detects the rotation angle of a rotating body that generates a magnetic field, a detection method, and a program, the detection device comprising: a first electromagnetic conversion unit that detects the magnetic field of the rotating body; a second electromagnetic conversion unit that detects the magnetic field of the rotating body at a different phase than the first electromagnetic conversion unit; an angle calculation unit that calculates the rotation angle of the rotating body on the basis of the detection result of the first electromagnetic conversion unit and the second electromagnetic conversion unit; an angle prediction unit that predicts the rotation angle of the rotating body on the basis of the rotation angle calculated by the angle calculation unit; and a determination unit that determines the rotation angle of the rotating body on the basis of a comparison result of the rotation angle calculated by the angle calculation unit and the rotation angle predicted by the angle prediction unit.
Inventors:
OKAMOTO JUNICHIRO (JP)
Application Number:
PCT/JP2016/067862
Publication Date:
December 22, 2016
Filing Date:
June 15, 2016
Export Citation:
Assignee:
ASAHI KASEI MICRODEVICES CORP (JP)
International Classes:
G01D5/244; G01D5/14
Foreign References:
| JPH01296109A | 1989-11-29 | |||
| JP2008116292A | 2008-05-22 | |||
| JP2011208971A | 2011-10-20 | |||
| JP2013545098A | 2013-12-19 | |||
| JP2008116300A | 2008-05-22 |
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
Ryuka international patent business corporation (JP)
Ryuka international patent business corporation (JP)
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