Fiber optic gyro

Details Fiber optic gyro Fiber optic gyro

1990-05-11

1993-05-25

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356345, 385 14, G01C 1972

Patent

active

052144879

ABSTRACT:
An inexpensive fiber optic gyro using a fiber optic sensing coil that is fed from two single-mode light carriers such as an optical waveguide or optical fibre. The light carriers obtain their energy, through a mode splitter, from a double-mode light carrier. The double-mode carrier is, in turn, energized by an at least partially coherent light source through a single-mode light carrier. The light source is preferably a laser. Detectors are attached to light carriers which tap different predetermined positions along the double-mode waveguide to produce substantially sinusoidal signal functions of sensed rotation.

REFERENCES:
patent: 4938594 (1990-06-01), Pavlath

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