Patent ID: 8516886
Filing Date: 2013-08-27
Classification: G01C,G01P,H01L,Y10T

Abstract:
1. A gyroscope, comprising: a sense frame; a proof mass disposed outside the sense frame; a pair of anchors; a plurality of drive beams disposed on opposing sides of the sense frame and between the pair of anchors, the drive beams connecting the sense frame to the proof mass, each of the drive beams including a piezoelectric layer and configured to cause drive motions of the proof mass, the drive motions being torsional oscillations substantially in a first plane of the drive beams; and a plurality of sense beams connecting the sense frame to the pair of anchors, each of the sense beams including a layer of piezoelectric sense electrodes configured to produce a piezoelectric charge in response to an angular rotation applied to the gyroscope, wherein the sense frame is substantially decoupled from the drive motions of the proof mass.