METHOD FOR REDUCING VIBRATION ERRORS OF GYRO PLATFORM USING DYNAMICALLY TUNED GYROSCOPES Russian patent published in 2021 - IPC G01C21/00 

FIELD: gyroscopic instrumentation.

SUBSTANCE: invention relates to the field of gyroscopic instrumentation. Before installing the dynamically tuned gyroscope into the gyro platform, its autonomous vibration studies are carried out using a vibration stand, the platform of which has an elastic suspension. At the same time, the speed of the gyroscope drift from self-swinging caused by periodic changes in the components of the natural vibration spectrum of the ball-bearing support of its drive, the spectral composition of its own vibration and the magnitude of the vibration components of this spectrum, natural resonance frequencies due to the axial and radial stiffness of its elastic suspension are determined. Gyroscopes installed in the gyro platform are matched with taking into account the requirements imposed on the spacing of the natural frequencies of the two gyroscopes from each other, the values of the natural vibration components of the vertical and course gyroscopes located in the specified regions near the resonance frequencies of the course and vertical gyroscopes, respectively, the values of the drift velocities from the self-swinging of the vertical and heading gyroscopes.

EFFECT: reduction of vibration errors of the gyro platform from the own vibration interaction of the DTG at the same tuning frequency of the generators supplying the gyro drives for all manufactured gyro platforms.

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