Title:
バイアス補正機能を有する振動型ジャイロ、及び振動型ジャイロの使用方法
Document Type and Number:
Japanese Patent JP6660849
Kind Code:
B2
Abstract:
A vibration gyro having high bias stability, and a method of using the gyro for obtaining a precise angular velocity signal by correcting the bias. The gyro has: a drive signal generating part configured to generate a multiplexed drive signal; first and second demodulation circuits configured to generate first and second demodulation signals, respectively; first and second control circuits configured to generate first and second feedback amplitude signals, respectively; a feedback signal generating part configured to generate a first multiplexed feedback signal by multiplexing a first feedback signal obtained by modulating the first feedback amplitude signal at the first frequency, and at least one second feedback signal obtained by modulating the second feedback amplitude signal at the at least one second frequency; and a subtracter configured to output an angular velocity signal by subtracting the second feedback amplitude signal from the first feedback amplitude signal.
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Inventors:
Suzuki Caleb
Kenji Kobayashi
Tomohiro Fukuda
Shuji Nakashita
Kenji Kobayashi
Tomohiro Fukuda
Shuji Nakashita
Application Number:
JP2016153949A
Publication Date:
March 11, 2020
Filing Date:
August 04, 2016
Export Citation:
Assignee:
Mitsubishi Precision Co., Ltd.
International Classes:
G01C19/5726; G01C19/5762
Domestic Patent References:
| JP2015230281A | ||||
| JP2002195832A | ||||
| JP2003021518A | ||||
| JP10267658A |
Foreign References:
| US20160109258 |
Attorney, Agent or Firm:
Atsushi Aoki
Tetsuro Shimada
Shinji Mitsuhashi
Hirose Shigeki
Kazuo Maejima
Tetsuro Shimada
Shinji Mitsuhashi
Hirose Shigeki
Kazuo Maejima