Title:
角速度検出装置用回路、角速度検出装置及び故障判定システム
Document Type and Number:
Japanese Patent JP5360361
Kind Code:
B2
Abstract:
An angular velocity detection circuit is connected to a resonator for making excited vibration on the basis of a drive signal and detects an angular velocity. The angular velocity detection circuit includes: a self-vibration component extraction unit that receives, from the resonator, a detection signal including an angular velocity component based on a Coriolis force and a self-vibration component based on the excited vibration and extracts the self-vibration component from the detection signal; a direct-current conversion unit including an integration unit that integrates an output signal of the self-vibration component extraction unit; and a temperature characteristic compensation unit that compensates for a variation due to a temperature in an output signal of the direct-current conversion unit.
Inventors:
Kenji Sato
Application Number:
JP2008186137A
Publication Date:
December 04, 2013
Filing Date:
July 17, 2008
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G01C19/5614; G01C19/56; G01P21/02
Domestic Patent References:
| JP2000171257A | ||||
| JP2003021517A | ||||
| JP2005227234A | ||||
| JP2006119008A | ||||
| JP11044540A | ||||
| JP2007292743A |
Attorney, Agent or Firm:
Yukio Fuse
Mitsue Obuchi
Misa Nagata
Mitsue Obuchi
Misa Nagata