Kerr effect compensator for a fiber optic gyroscope

Details Kerr effect compensator for a fiber optic gyroscope Kerr effect compensator for a fiber optic gyroscope

1998-12-31

2000-04-04

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1972

Patent

active

060468106

ABSTRACT:
An interferometric fiber optic gyroscope having compensation electronics to virtually eliminate rotation rate sensing errors caused by Kerr effect in the IFOG due to differing intensities of the counter-propagating beams relative to each other. Compensation accounts for varying intensities of the beams due to all or some changes of: the light beam splitter ratio relative to temperature; fiber coil loss due to temperature and longevity; and the intensity of the light source because of age.

REFERENCES:
patent: 4673293 (1987-06-01), Sanders
patent: 5465149 (1995-11-01), Strandjord et al.
patent: 5473480 (1995-12-01), Kemmler
patent: 5563705 (1996-10-01), Sanders

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