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Chen Zhang - IEEE Xplore Author Profile

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The optical structure and working principle of brillouin fiber optic gyroscope was analyzed, the optical components Jones matrix model of brillouin fiber optic gyroscope was established by using Jones matrix optics theory, and the optical transfer matrix model was established based on optical transmission mechanism, the output light intensity expressions of brillouin fiber optic gyroscope and the ...Show More
Traditional digital close-loop fiber optic gyro (FOG) takes plusmnpi/2 square wave modulation for signal processing, in which way the circuit will generate additional cross-coupling error, thus affecting the accuracy of the system. In this paper a new modulating scheme for FOG is taken, in which the determinate five points of the light intensity detection curve are modulated. Theoretical and exper...Show More
Based on the study of the principle of ladder wave modulation in digital closed-loop fiber optic gyroscope, the temperature characteristics of Y waveguide half-wave voltage is analyzed and verified by experiment, then the influences of modulation stability of Y waveguide on fiber optic gyroscope is investigated, and the real-time tracking of compensation method for the modulation instability of Y ...Show More
The temperature compensation of fiber optic gyroscope is researched in the viewpoint of the practical engineering application. The temperature characteristics of fiber optic gyroscope are analyzed, and the main factors that caused the temperature drift of gyroscope are definite. Then the temperature experiment is tested, according to the experimental results, summed up that the temperature drift e...Show More