METHOD FOR MEASURING THE STATIC CAPTURE THRESHOLD IN A LASER ANGULAR VELOCITY SENSOR Russian patent published in 2021 - IPC G01C19/64 

FIELD: laser equipment.

SUBSTANCE: invention relates to laser equipment, namely, to laser gyroscopy. The method for measuring the static capture threshold in a laser angular velocity sensor includes creation of sign-alternating dithering, extraction and processing of information on the frequency of beats of counterrunning waves, determination of the scale coefficient, determination of the difference in the nonlinear distortions of the scale coefficient, and calculation of the static capture threshold by the formula:

,

wherein Ω_L is the static capture threshold in the laser angular velocity sensor; K₁; K₂; K₃ are the scale coefficients of the laser angular velocity sensor; a, b, c are the coefficients determined based on the approximation of the dependence of the difference in the nonlinear distortions of the scale coefficient on the static capture threshold.

EFFECT: reduction in the time and decrease in the labour intensity of the process of measuring the static capture threshold in a laser angular velocity sensor due to the reduction in the amount of data required for calculation and the automation of the measurement process.

1 cl, 1 dwg, 2 tbl