Fiber-optic gyro versus coriolis vibratory one
DOI:
https://doi.org/10.33577/2312-4458.10.2014.78-82Keywords:
coriolis vibratory gyro, fiber-optic gyro, Allan variance, scale factor, nonlinearity, temperature instabilityAbstract
Fiber optic gyro (FOG) and metallic resonator Coriolis vibratory gyro (CVG) main accuracy parameters are compared in this paper. Manufacturers of the analyzed gyros are from Russia (FOG) and Ukraine (CVG). Methodics to measure and to calculate scale factor temperature instability and nonlinearity as well as bias components such as quantum noise, random walk and drift using Allan variance analysis are described. Scale factors temperature instability and nonlinearity graphs of both gyros are given and compared. Bias components calculation at stable temperature are also given and compared. Two CVGs: KVG25, KVG43 and one FOG: VG951D take part in comparative analysis.References
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