Magnetic compensators for fiber optic gyroscopes

Details Magnetic compensators for fiber optic gyroscopes Magnetic compensators for fiber optic gyroscopes

2007-11-20

2007-11-20

Turner, Samuel A. (Department: 2877)

Optics: measuring and testing

By light interference

Rotation rate

C356S465000

Reexamination Certificate

active

11010217

ABSTRACT:
A fiber optic gyroscope (FOG) includes a sensing coil with a particular magnetic sensitivity magnitude and direction with respect to the geometric axis of the sensing coil. The FOG also includes a plurality of magnetic compensators. Each magnetic compensator is fabricated so as to have a particular magnetic sensitivity magnitude and direction, the magnitude being comparable to that of the sensing coil, with large tolerances relative to the magnitude and direction. The compensators are positioned relative to one another and to the sensing coil such that the combined magnetic sensitivities of the compensators cancel the magnetic sensitivity of the sensing coil.

REFERENCES:
patent: 5333214 (1994-07-01), Huang et al.
patent: 5608524 (1997-03-01), Blake
patent: 6040908 (2000-03-01), Rahn et al.
patent: 6211963 (2001-04-01), Kaliszek et al.

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