Title:
回転角度検出装置及び回転角度検出方法
Document Type and Number:
Japanese Patent JP5435450
Kind Code:
B2
Abstract:
A rotation angle detection device for detecting the absolute rotation angle of a rotation body rotating multiple times and whose rotation is to be detected. The rotation angles of a first rotation body rotating at a rotation angle frequency Tc in correspondence with rotation of the rotation object whose rotation is to be detected and the rotation angle of a second rotation body rotating at a rotation angle frequency Tm that is different from the rotation angle frequency Tc of the first rotation body are individually detected. ; Based on a phase difference T between continuous angle signals detected, the rotation speed of a main rotation body, which is either the first or the second rotation body, and the absolute rotation angle of the rotation body rotating multiple times and whose rotation is to be detected is calculated based on the detected continuous angle signal and rotation speed of the main rotation body.
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Inventors:
Fumihiko Abe
Kengo Tanaka
Kim Toji
Kengo Tanaka
Kim Toji
Application Number:
JP2008540927A
Publication Date:
March 05, 2014
Filing Date:
September 28, 2007
Export Citation:
Assignee:
THE FURUKAW ELECTRIC CO.,LTD.
International Classes:
G01D5/244; G01B7/30
Domestic Patent References:
| JP2006119082A | 2006-05-11 | |||
| JP2005031055A | 2005-02-03 | |||
| JP2004340677A | 2004-12-02 | |||
| JP2002531858A | 2002-09-24 | |||
| JP2001505667A | 2001-04-24 | |||
| JPH11500828A | 1999-01-19 | |||
| JP2006105827A | 2006-04-20 | |||
| JP2004138606A | 2004-05-13 | |||
| JP2005031055A | 2005-02-03 |
Attorney, Agent or Firm:
Ryo Matsushita