System to reduce gyroscopic errors with limited power supply...

Details System to reduce gyroscopic errors with limited power supply... System to reduce gyroscopic errors with limited power supply...

2010-06-11

2011-12-13

Lyons, Michael A (Department: 2886)

Optics: measuring and testing

By light interference

Rotation rate

Reexamination Certificate

active

08077321

ABSTRACT:
One embodiment is directed to a power supply for a fiber optic gyroscope that comprises at least one main power supply, at least one demodulator local power supply to operatively couple the main power supply to a demodulator included in the fiber optic gyroscope, and at least one modulator local power supply to operatively couple the main power supply to a bias modulator included in the fiber optic gyroscope. The demodulator local power supply comprises a first current source to source current to the demodulator and a first shunt regulator coupled across a load associated with the demodulator. The modulator local power supply comprises a second current source to source current to the bias modulator and a second shunt regulator coupled across a load associated with the bias modulator.

REFERENCES:
patent: 4484331 (1984-11-01), Miller
patent: 5052808 (1991-10-01), Hilby et al.
patent: 5412474 (1995-05-01), Reasenberg et al.
patent: 5963570 (1999-10-01), Gnauck et al.
patent: 6587490 (2003-07-01), Crawford
Keith et al., U.S. Appl. No. 12/640,931, “System to Reduce Gyroscopic Errors With Limited Power Supply Quality in a Fiber Optic Gyroscope”,filed Dec. 17, 2009.

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