Gyro sensor coil with filled optical fiber

Details Gyro sensor coil with filled optical fiber Gyro sensor coil with filled optical fiber

1997-08-01

1999-02-09

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

385123, G01C 1972

Patent

active

058701940

ABSTRACT:
A sensor coil for a fiber optic gyroscope includes fiber with an inner jacket of predetermined composition for reducing the effects of temperature-change-induced optical length asymmetry upon bias stability. Filler material of predetermined composition is combined with silicone and deposited upon the glass fiber, forming an inner jacket. The composition of the inner jacket is adjusted to thereby effect the Poisson ratio of the inner jacket and thereby reduce the isotropic thermally-induced pressure within the wound coil resulting in reduced temperature-induced optical length asymmetry and improved bias stability.

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N. J. Frigo, "Compensation of Linear Sources of Non-reciprocity in Sagnac Interferometers", Fiber Optics and Laser Sensors I, proc. SPIE vol. 412, p. 268 (1983).
D. M. Shupe, "Thermally Induced Nonreciprocity in the Fiber Optic Interferometer," Applied Optics, vol. 19(5), pp. 654-655 (1980).

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