Patent ID: 7565839

Claim:
An apparatus, comprising: a class II coriolis vibratory gyro (CVG) having a beam; drive components operatively coupled to the beam, the drive components driving the beam to oscillate with a Coriolis induced vibration in two orthogonal faces of the beam; a bias that is equal to sin 2θ τ (1/τ 1 −1/τ 2 )/2k rad/sec; a quadrature that is equal to sin 2θ ω (ω 1 −ω 2 )/2k rad/sec; where: θ τ =angle between vibration drive axis and principal damping axis; θ ω =angle between vibration drive axis and principal elastic axis; τ 1 and τ 2 =damping time constant in each of the principal damping axes; ω 1 and ω 2 =resonant frequency in each of the principal elastic axes; and k=geometry dependant scaling constant; and means for reducing the bias to substantially zero; and means for reducing the quadrature to substantially zero.