Sample and hold flyback phase control circuit for a null seeking

Details Sample and hold flyback phase control circuit for a null seeking Sample and hold flyback phase control circuit for a null seeking

1993-01-22

1994-12-06

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1972

Patent

active

053715942

ABSTRACT:
A flyback phase control circuit for a null seeking fiber optic gyroscope system having an optimal peak phase amplitude includes a sample and hold circuit for sampling the phase difference between the clockwise and counterclockwise optical beams in the differential flyback period; and a compensation circuit responsive to the sampled phase difference for driving the nulling phase modulator voltage ramp generator to maintain the predetermined optimal peak phase amplitude.

REFERENCES:
"Double closed loop Hybred Fiber Gyroscope Using Digital Phase Ramp", Lefevre et al. Aug. 1988, pp. 1-4.

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