Analog torque rebalance loop for a tuned rotor gyroscope

Details Analog torque rebalance loop for a tuned rotor gyroscope Analog torque rebalance loop for a tuned rotor gyroscope

G - Physics

01

P

341/104

G01P 9/02 (2006.01) G01C 19/30 (2006.01)

Patent

CA 1332969

A rebalance loop for controlling a dry tuned rotor gyroscope having a rotor moveable about two orthogonal axes, a first pickoff associated with one of the axes for producing an electrical error signal when a rate is applied to one of the axes, a second pickoff associated with the other of the axes for producing an electrical error signal when a rate is applied to that axis and a pair of torquer coil adapted to receive electrical control signals from the rebalance loop and apply torques to the rotor about the two axes for correcting errors detectedby the pickoffs, the rebalance loop comprising a first direct-axis loop adapted to receive an error signal produced by one of the pickoffs and produce a first amplified error signal, a second direct-axis loop adapted to receive an error signal produced by the other of the pickoffs and produce a second amplified error signal, a first cross-axis loop for amplifying the error signal produced by the one of the pickoffs and adapted to produce a first correction signal, a second cross-axis loop for amplifying the error signal produced by the other of the pickoffs and adapted to produce a second correction signal, a first summing junction for adding the first correction signal to the second amplified error signal for producing a first torque correction signal, and a second summing junction for adding the second correction signal to the first amplified error signal for producing a second torque correction signal.

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