PURPOSE: A seesaw-shape electrostatic drive micro gyroscope is provided to amplify and transmit Coriolis force and accordingly improve the sensing capacity for angular velocity by seesawing suspended structures of large and small masses if the mass of the suspended structure is small, the Coriolis force is reduce, and then sensing capacity is decreased. CONSTITUTION: A seesaw-shape electrostatic drive micro gyroscope is composed of first and second structures(1a,2b) driven in a seesaw type toward a third axis vertical to a substrate for forming a plane comprising a first axis and a second axis crossing the first axis of a rectangular coordinate to incline the center of gravity to one side and amplify and transmit displacement to the third axis; a first supporting beam for supporting the first suspended structure; a first fixing device for fixing the first supporting beam; a second supporting beam for connecting the first and second suspended structures; an exciting device for exciting the first suspended structure to the first axis; an angular velocity sensing device arranged on the substrate right under the first and second suspended structures to sense that the two suspended structures are displaced toward the third axis when rotary power around the second axis is generated; and a second fixing device connected to the center of gravity of the first and second suspended structures of the second supporting beam to reduce sensitivity for acceleration.
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