Patent ID: 8584522
Filing Date: 2013-11-19
Classification: G01C,G01P,H01L,Y10T

Abstract:
1. A gyroscope, comprising: a drive frame; a central anchor; a plurality of drive beams disposed on opposing sides of the central anchor, the drive beams connecting the drive frame to the central anchor, each of the drive beams including a piezoelectric layer and configured to cause the drive frame to oscillate torsionally in a plane of the drive beams; a proof mass; and a plurality of sense beams including a layer of piezoelectric sense electrodes, the sense beams configured for connecting the drive frame to the proof mass, the sense beams being configured to bend in a sense plane substantially perpendicular to the plane of the drive beams in response to an applied angular rotation, causing a piezoelectric charge in the sense electrodes wherein the sense beams are tapered sense beams having a width that decreases with increasing distance from the anchor.