Fiber optic rotation sensor

Details Fiber optic rotation sensor Fiber optic rotation sensor

1981-03-31

1983-10-18

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01B 902, G01C 1964

Patent

active

044102755

ABSTRACT:
Rotation sensor having a loop of fiber optic material in which counter propagating waves are generated with a phase relationship corresponding to the rate at which the loop is rotated. All fiber optic components are employed in the system for directing the light to and from the loop and establishing, maintaining and controlling proper polarization of the light. In one particularly preferred embodiment, the loop and other components are formed on a single strand of fiber optic material which extends continuously through the system.

REFERENCES:
patent: 4248535 (1981-02-01), Pircher
patent: 4283144 (1981-08-01), McLandrich
patent: 4302107 (1981-11-01), Schiffner et al.
"Single-Mode Fiber-Optic Polarizer" Bergh et al., Optics Letters, vol. 5, No. 11, Nov. 1980, pp. 479-481.
"Single-Mode Fiber Optic Directional Coupler", Bergh et al., Electronics Letters, Mar. 27, 1980, vol. 16, No. 7, pp. 260-261.
"Single-Mode Fiber Fractional Wave Devices and Polarization Controllers" Lefevre, Electronics Letters, Sep. 25,1980, vol. 16, #20, pp. 778-780.
"Fiber-Optic Rotation Sensing with Low Drift", Ulrich, May 1980, vol. 5, No. 5, Optics Letters, pp. 173-175.

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