Abstract：Aiming at the outstanding issue of angular velocity extraction from useless information, which is caused by gradient hot phase of traditional interference grating gyro, a multiple weak links fan shaped superfluid gyro structure is proposed in this paper, and the accuracy and sensitivity performance of the gyro is intensively studied. Firstly, on the basis of gradient hot phase mechanism , the equal adjacent interference loop area structure without gradient hot phase is designed. Secondly, the mathematical model of the gyro is established, and the sensitive process of angular velocity is verified. Finally, the performance of angular velocity detection range and sensitivity is analyzed: the impact of the sensitive area, membrane area, Josephson frequency, the numbers of micro porous and weak link to angular velocity range is explored, and the ultrahigh-precision and ultrahigh-sensitivity of this structure is proved by comparing simulation results.
