Pulse width modulated binary rebalance rate capture loop control

Details Pulse width modulated binary rebalance rate capture loop control Pulse width modulated binary rebalance rate capture loop control

1978-01-16

1981-03-17

Bonck, Rodney H.

Machine element or mechanism

Gyroscopes

Gyroscope control

74 55, 74 56D, G01C 1928, G01C 1930

Patent

active

042559790

ABSTRACT:
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 means 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.

REFERENCES:
patent: 3238791 (1966-03-01), Brodersen
patent: 3354726 (1967-11-01), Krupick et al.
patent: 3902374 (1975-09-01), Hoffman et al.
patent: 3918310 (1975-11-01), Evans et al.
patent: 4125799 (1978-11-01), Harduvel

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