Pulse width modulated binary rebalance rate capture loop...

G - Physics – 01 – C

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79/12

G01C 19/40 (2006.01) G01C 19/28 (2006.01)

Patent

CA 1098738

ABSTRACT OF THE INVENTION A dry tuned two axis gyro having a pulse-rebalanced rate capture loop control. This configuration eliminates the need for an analogue-to-digital converter since the gyro is torquered at a pulse rate using a constant current source. Another feature of the control loop is a cross-channel shaping network which exchanges an electronically damped error from one axis to the other axis. By mean of a summing network which combines the error signals from the main channel and the cross channel with a source of time varying ramp voltage, an alternately negative to positive signal is applied to the gyro torquer.

319340

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