Digital system study applied to performance detection of optic fiber gyroscope

This paper introduces the evaluation system of open loop signal of fiber optic gyroscope.We give the signal got from gyroscope by Lock_-in Amplifier to PC,design friend interface between human and PC,and evaluate the capability of FOG by bias,bias stability,scale factor and so on.PC and SR830 adopt USB and GPIB interface,thus we can control the real time course by the digital sampling and processing system designed by VC++ on windows,high speed receiving and sending data and display the result by picture and words.Then we increase the stability of system,and reduce the error rate,and the standardization of detection system is realized.