Patent ID: 6789437
Filing Date: 2004-09-14
Classification: G01C,Y10T

Abstract:
Apparatus for oscillating a device fixed to a two degree of freedom gyroscope having a spinning rotor, said device being associated with a two-axis system said apparatus comprising, in combination:a) said gyroscope including a first forcer for applying a first torque with respect to a first rotor axis in response to a first alternating signal and a second forcer for applying a second torque to said rotor with respect to a second, orthogonal rotor axis in response to a second signal; b) a first pickoff for detecting deflection of said rotor about said first rotor axis and generating a first pickoff signal in response and a second pickoff for detecting deflection of said rotor about said second rotor axis and generating a second pickoff signal in response; c) a first motor for driving said device about a first device axis in response to said first pickoff signal and a second motor for driving said device about a second device axis in response to said second pickoff signal; and d) a cross-axis circuit for receiving said first signal and deriving the second signal as the derivative thereof.