Influence of external acoustic disturbances on differential vibratory gyroscope output signals

Test results on the influence of periodic and noisy acoustic disturbances on differential metallic resonator Coriolis vibratory gyroscope which resonant frequency is close to frequency of periodic acoustic disturbances are presented in this paper. Small sensitivities to noisy acoustic disturbances of 100 dB intensity in the frequency range of 1-10 kHz that covers resonant frequency have been revealed both for differential and non differential channels of differential vibratory gyro. No any influence on differential CVG output signals under action of periodic acoustic disturbances close to resonant frequency has been revealed.