Patent ID: 7231824
Filing Date: 2007-06-19
Classification: G01C

Abstract:
1. A MEMS gyroscope, comprising: one or more proof masses coupled to a time-varying drive voltage source, said one or proof masses configured to oscillate in a drive plane above a support substrate; at least one sense electrode positioned adjacent to each of the one or more proof masses; a sense bias voltage source coupled to the one or more proof masses, said sense bias voltage source adapted to produce a charge between the one or more proof masses and a corresponding sense electrode; sensing means for measuring the Coriolis force exerted on the one or more proof masses and outputting a rate signal corresponding to the rate of rotation of the gyroscope about an input axis; and one or more quad steering voltage members positioned adjacent to each of the one or more proof masses, each of said one or more quad steering voltage members being electrically coupled to a voltage.