METHOD FOR DETERMINING THE ACTUAL OSCILLATION FREQUENCY OF A QUARTZ HEMISPHERICAL RESONATOR OF A WAVE SOLID STATE GYROSCOPE Russian patent published in 2022 - IPC G01R23/00 

FIELD: measuring technologyю

SUBSTANCE: invention relates to measuring technology. The method for determining the actual oscillation frequency of a quartz hemispherical resonator of a wave solid-state gyroscope consists in using the readings of an analog-to-digital converter, and the method for least squares in triads of time points is used to determine the measured frequency. The results of the analog-to-digital conversion of the response of the oscillatory system to the initial perturbing action are used as an input discrete sequence for a simplified stationary Kalman filter, which includes an extrapolation stage and a correction stage. Depending on the obtained deviation matrix, the current estimate of the stress value is determined, then the obtained estimate of the stress value is used as an input discrete sequence for the overdetermined system of linear algebraic equations. The actual frequency of the measured oscillations is determined using a recurrent implementation of the least squares method to solve an overdetermined system of linear algebraic equations.

EFFECT: reducing the time of functional readiness of the VHG by reducing the excitation time of the quartz hemispherical resonator, determining the actual oscillation frequency of the quartz hemispherical resonator under conditions of low signal-to-noise ratio.

1 cl, 1 dwg