| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an angular velocity detection apparatus that obtains a stable output with high detection accuracy of the angular velocity detection apparatus regardless of a fluctuation of reference voltage accompanying a fluctuation of power supply voltage. <P>SOLUTION: The angular velocity detection apparatus includes at least a gyro sensor detection circuit 102 that is connected to an oscillator 101, drives the oscillator 101, detects an angular velocity acting on the oscillator 101 and outputs an analog detection signal; an A/D converter 2 that converts the output analog detection signal into a digital signal; and a digital calculation device 3 that calculates based on the converted digital signal; and is constructed so that the reference voltage to the gyro sensor detection circuit 102 and the reference voltage to the A/D converter 2 are supplied from a common reference voltage generation circuit 4. <P>COPYRIGHT: (C)2010,JPO&INPIT |
