发明名称 |
Angular velocity sensor and diagnosis system for this sensor |
摘要 |
A drive circuit supplies a FB (feedback) signal having a predetermined frequency to drive electrodes to vibrate a vibrator. An angular velocity detecting circuit detects a vibratory movement caused in a direction normal to an oscillating direction of the vibrator based on a sensing signal of angular velocity sensing electrodes, thereby generating an angular velocity signal. A signal input circuit supplies a diagnostic signal having a frequency different from that of the FB signal, which is entered into the vibrator via diagnosing electrodes. A diagnosis circuit generates a breakdown signal based on a signal responsive to the diagnostic signal which is obtained from at least one of the drive electrodes and the angular velocity sensing electrodes.
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申请公布号 |
US6167744(B1) |
申请公布日期 |
2001.01.02 |
申请号 |
US19980195127 |
申请日期 |
1998.11.18 |
申请人 |
DENSO CORPORATION |
发明人 |
AKIMOTO KATSUHIDE;WATARAI TAKEHIRO;KATO KENJI;MIURA KAZUHIKO |
分类号 |
G01C19/56;G01P21/02;(IPC1-7):G01P21/00 |
主分类号 |
G01C19/56 |
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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