Film vibration noise research of fan shaped superfluid interference grating gyroscope

Aimed at the effect of film vibration on the output angular velocity of fan-shaped superfluid interference grating gyro, mathematical modeling and numerical analysis of gyro film vibration-angular velocity noise was carried out. First, the angular velocity-film displacement transfer equation of fan shaped superfluid interference grating gyro is clarified. Second, the mathematical model of gyro film vibration-angular velocity noise was constructed based on reverse solution. Finally, the effects of Josephson’s operating frequency and external input angular velocity on the gyro noise are simulated and analyzed, revealing the gyro film vibration-angular velocity noise characteristics and amplitude range.