Patent ID: 8037757
Filing Date: 2011-10-18
Classification: G01C

Abstract:
1. A method for operating a Micro-Electro-Mechanical Systems (MEMS) gyroscope sensor, comprising: inducing a motor motion to a proof mass, the proof mass capacitively coupled to a sense electrode via a gap between mating comb fingers of at least one comb finger pair that define a sense capacitance between the proof mass and the electrode, the shape of the sense electrode such that motion along the motor axis produces a variation in sense capacitance whereby the capacitance is variable as a function of a displacement in a position of the mated comb fingers caused by the induced motor motion; and producing a time-varying electrical output in response to a rotation of the MEMS gyroscope, wherein the time-varying electrical output is amplified by the capacitance variation caused by the induced motor motion and the shape of the sense electrode.