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The eigenfrequencies of the Coriolis Vibrational Gyroscope with cylindrical resonator and their influence on the output signal of the gyroscope are considered. The obtained formulas for calculating the eigenfrequencies of CVG with a metal cylindrical resonator have been experimentally confirmed in practice by the acoustic method. The results of spectral analysis of a single impact on the resonator showed the splitting of the resonant frequency into two components with peaks of 5781.05 Hz and 5787.53 Hz. The non-ideal geometry of the cylinder causes this splitting. The results of the experimental study on the real split resonant frequency and Q-factor demonstrate the importance of considering the non-ideal resonator for the accuracy of modeling its dynamic characteristics. The results of modeling the movement of the CVG are presented, which demonstrate a significant impact on the characteristics of the oscillating system not only of the different frequencies, but also of its phases relative to the excitation axis X and the measurement axis Y. Assessment of the influence of multi-frequency on the properties of the CVG as an angular velocity sensor indicates the possibility of using this influence in the CVG control system. It is demonstrated that the use of the CVG control system in scanning mode for multi-frequency resonator characteristics has found practical application in CVG balancing operations, specifically in identifying and removing unbalanced resonator masses.