Abstract
The laser gyro frequency response is studied by means of numerical simulation using a phase equation. The calculation results are compared to the results of experimental measurements on a precision dynamic test-bench. Quantitative relationship between the threshold value of static lock-in zone and frequency response distortions is established. Numerical methods helped to obtain and experimentally confirm the quantitative dependence of frequency response distortion on the amplitude and frequency of meander-shaped dither. It is shown that the dither shape significantly affects the frequency response form. Furthermore, it is demonstrated that frequency-response distortions depend on conditions of its measurement, in particular, on the time. The conducted research allows dither parameters to be optimized with a view to increase the accuracy of measurements using laser gyroscopes.
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Original Russian Text © V.V. Azarova, A.P. Makeev, E.V. Kuznetsov, Yu.D. Golyaev, 2018, published in Giroskopiya i Navigatsiya, 2018, No. 2, pp. 3–14.
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Azarova, V.V., Makeev, A.P., Kuznetsov, E.V. et al. Frequency Response of Laser Gyroscopes in a Wide Range of Rotation Velocities. Gyroscopy Navig. 9, 191–198 (2018). https://doi.org/10.1134/S2075108718030021
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DOI: https://doi.org/10.1134/S2075108718030021