Initial Production Results of a New Family of Fiber Optic Gyroscopes

摘要

Fibersense Technology Corporation has built and tested a new family of Fiber Optic Gyroscopes (FOGs) which use all digital signal processing. This new family of FOGs is built around a tactical grade gyro having 200 meters of polarization preserving fiber. These gyros have demonstrated excellent performance over the military environment and are currently in production for a variety of commercial and military programs. This paper presents initial results on the first 18 production units. The unmodeled day-to-day bias stability and the bias variation over temperature is less than 1°/h. The Angle Random Walk is typically less than 0.02°/root-hr and the standard deviation of the Scale Factor repeatability and non-linearity' is less than 100ppm. The dynamic range of this gyro is in excess of 5000°/s.