Patent ID: 7140249

Claim:
An angular velocity sensor comprising: a pillar-shaped vibrator which is made of piezoelectric ceramic and extends along a longitudinal direction; at least one drive electrode and detecting electrodes extending along the longitudinal direction on one major surface of the piezoelectric ceramic with the drive electrode positioned between the detecting electrodes; and support members which hold the vibrator at those points along the vibrator where vibration nodes are formed when the vibrator vibrates, mechanically support the vibrator and are electrically connected to the vibrator, wherein, each of the support members has an elongated arm extending substantially at right angles to the vibrator and a vibration direction of the vibrator and is connected at a distal end thereof to the vibrator and has connecting parts provided at the distal end and a notch; the vibrator and each support member has an uppermost layer coated with silver or gold at the electrically connected parts and are electrically and mechanically connected to each other with conductive adhesive provided in the notch and on both surface of the connecting part and containing silver particles as conductive filler; and the arms of the support members lying above and below each vibration node, respectively, have bent portions which are bent in the same direction with respect to the longitudinal direction of the vibrator.