Patent ID: 6796178
Filing Date: 2004-09-28
Classification: G01C

Abstract:
A MEMS gyroscope, comprising:a drive body disposed on a substrate to be movable about a first axis, the first axis being a rotation axis line parallel to a surface of the substrate; a sensing body disposed on the substrate to be movable about a second axis, the second axis being a rotation axis line normal to the surface of the substrate; a medium body disposed on the substrate, the medium body being capable of moving together with the drive body about the first axis and moving together with the sensing body about the second axis; a driving electrode for driving the drive body in order for the drive body to vibrate in a certain range about the first axis; and a sensing electrode for measuring a displacement of the sensing body rotating about the second axis by a Coriolis force generated by an application of an angular velocity while the drive body vibrates by the driving electrode.