Patent ID: 8336380

Claim:
An angular velocity sensor comprising: a support substrate; a reference vibrator supported from a peripheral portion by a first support member formed on the support substrate so as to generate reciprocating rotational vibration about a first rotation axis as a center; a detection vibrator supported from a peripheral portion by a second support member formed on the reference vibrator so as to generate reciprocating rotational vibration about a second rotation axis, which is different from the first rotation axis, as a center; a reference vibration generating unit constructed to allow the reference vibrator to generate reciprocating rotational vibration; and a detection unit coupled to the reference vibrator constructed to detect a relative displacement amount of the detection vibrator with respect to the reference vibrator, which is in association with the reciprocating rotational vibration of the detection vibrator, wherein the detection unit includes a unit for detecting an electrostatic capacity between the reference vibrator and the detection vibrator.