发明名称 |
Vibrating gyroscope, electronic device using the same, and self-diagnosis method for vibrating gyroscope |
摘要 |
A vibrating gyroscope includes a piezoelectric vibrator and a plurality of detection load-impedance elements. The resistance of one of the detection load-impedance elements is changed by a switch so that the resistance is different from that of the other one of the detection load-impedance elements, thereby making difference between the amplitude of signals input from two detection electrodes to a differential circuit and detecting the variation in a Coriolis signal. Accordingly, a self-diagnosis for the vibrating gyroscope, for example, a diagnosis of a short circuit in the detection electrodes of the vibrator can be performed.
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申请公布号 |
US6608425(B2) |
申请公布日期 |
2003.08.19 |
申请号 |
US20020050924 |
申请日期 |
2002.01.22 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
EBARA KAZUHIRO;KUMADA AKIRA;HIRANO HIROYUKI |
分类号 |
G01P9/04;G01C19/56;H01L41/08;H02N2/00;(IPC1-7):H01L41/08 |
主分类号 |
G01P9/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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