| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an angular velocity detection circuit, an angular velocity detection device and a failure determination system in which failure detection accuracy of an oscillator is enhanced. <P>SOLUTION: An angular velocity detection circuit 5 is connected to an oscillator 10 excited based on a drive signal and detects the angular velocity. This circuit includes: self-vibration component extraction means 331 which receives, from the oscillator 10, a detection signal including an angular velocity component based on a Coriolis force and a self-vibration component based on the excited vibration and which extracts the self-vibration component from the detection signal; DC conversion means 332 including integration means 336 which integrates an output signal of the self-vibration component extraction means 331; and temperature characteristic compensation means 333 which compensates for a variation depending on the temperature of an output signal of the DC conversion means 332. <P>COPYRIGHT: (C)2013,JPO&INPIT |
