Fiber optic gyro drift rate compenstion based on temperature

Details Fiber optic gyro drift rate compenstion based on temperature Fiber optic gyro drift rate compenstion based on temperature

1994-05-19

1995-05-16

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1972

Patent

active

054165857

ABSTRACT:
The present invention provides a correction for fiber optic gyro drift rate error due to temperature effects based on either the temperature difference between the gyro housing and the sensor spool, or the rate of change of spool temperature. Although gyro drift rate error due to rates of temperature change are virtually unavoidable, adjustments can be made by sensing gyro temperature and calculating the required correction factor. This type of compensation is suited to high accuracy gyros when thermal disturbances are small, or to low accuracy gyros even when thermal disturbances are relatively large. Implementation of this method of compensation requires the development of appropriate electronic circuits to provide the required temperature correction to gyro output.

REFERENCES:
patent: 4702599 (1987-10-01), Mohn
patent: 5245687 (1993-09-01), Usui

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