Fiber optic rotation sensor or gyroscope with improved sensing c

Details Fiber optic rotation sensor or gyroscope with improved sensing c Fiber optic rotation sensor or gyroscope with improved sensing c

1995-04-07

1996-09-03

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

242470, G01C 1972

Patent

active

055528872

ABSTRACT:
A fiber-optic gyro includes a source of light and a coil of optical fiber with multiple turns. The coil is rotatable about an axis of sensitivity and optically couples light from the source to the coil to create counter-propagating light beams within the coil. The counter-propagated light beams produce an output signal indicative of the coil rotation rate, which is fed to a photodetector. The multiple turns of the coil vary in size on both sides of the mid-point of the fiber that forms the coil, and these multiple turns are collapsed in the direction of the axis of the coil.

REFERENCES:
patent: 4752043 (1988-06-01), Heinzer
patent: 4856900 (1989-08-01), Ivancevic
patent: 5405485 (1995-04-01), Henderson et al.
D. M. Shupe, "Thermally Induced Nonreceiprocity In The Fiber-optic Interferometer, " Optical Society of America (Reprinted by permission of the publisher from Applied Optics), vol. 19(5), 654-655 (1980).

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