发明名称 |
Angular velocity detection circuit, angular velocity detection apparatus, and failure determination system |
摘要 |
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. |
申请公布号 |
US8327704(B2) |
申请公布日期 |
2012.12.11 |
申请号 |
US20090504126 |
申请日期 |
2009.07.16 |
申请人 |
SATO KENJI;SEIKO EPSON CORPORATION |
发明人 |
SATO KENJI |
分类号 |
G01C19/56;G01P3/00;G01P3/44 |
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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