Optical fiber gyro

Details Optical fiber gyro Optical fiber gyro

1983-06-07

1985-10-15

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01B 902, G01C 1964

Patent

active

045470723

ABSTRACT:
An optical fiber gyro system provides a pair of separated optical paths containing partial common portions. A phase difference .DELTA..theta. is detected using a plurality of detectors which yield sin and cos functions in .DELTA..theta.. Functions are formed as linear couplings of these functions, and the phase difference .DELTA..theta. is obtained using the function of best sensitivity for the given range of .DELTA..theta..

REFERENCES:
Hotate et al, "Fiber-Optic Laser Gyro with Easily Introduced Phase-Difference Bias," Applied Optics, vol. 20#24, Dec. 15, 1981, pp. 4313-4318.

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