Patent ID: 7469603

Claim:
An angular velocity detector comprising: a substrate; support portions formed on a surface of said substrate; resilient support bodies having their respective one ends connected to said support portions; at least one vibrator supported to respective other ends of said resilient support bodies while poised above the surface of said substrate at a certain spacing therefrom, the vibrator being capable of being displaced relative to said substrate; exciting means for exciting said vibrator to vibrate in a certain direction of vibrations; and displacement detection means which, when an angular velocity acts from the outside while the vibrator is being vibrated in the direction of vibrations by the exciting means, detects a displacement of said vibrator in a direction perpendicular to the direction of vibrations in response to the angular velocity; wherein said vibrator or an angular velocity detection portion including said vibrator is electromagnetically driven to vibrate; and wherein said displacement detection means includes electrodes located on opposite sides of a space from said vibrator, and wherein electrodes disposed on said vibrator and formed inside a dug portion formed in said vibrator.