Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Parameter identification of hemispherical resonator gyro with the nonlinearity of the resonator A.A. MASLOV D.A. MASLOV I.V. MERKUREV Oscillations resonator gyro with the influence of non-linear relationship between stress and strain of the material of the resonator due to the physical properties of the material of construction. In the mathematical model to account for the nonlinearity of the gyro introduced additional terms. Obtain the calibration equations that identify factors neravnozhestkosti, raznodobrotnosti, damping, the orientation of the principal axes of the elastic and viscoelastic anisotropy, the initial value of systematic maintenance along with the nonlinearity coefficient. The proposed method allows testing for large vibration amplitudes at which the signal-to-noise ratio is high. Shown that the inclusion of non-linearity for large oscillation amplitudes can significantly improve the accuracy of the parameters. Keywords: identification of the parameters, gyro with a cylindrical resonator, nonlinear oscillations of the resonator, the method of Krylov-Bogoliubov, method of least squares, the residual variance Contacts: E-mail: Maslov954@yandex.ru Pp. 18-23.