采用相位锁定技术扩展高灵敏度超流体陀螺量程的方案设计与分析

In this paper，the research of superfluid gyroscope based on AC Josephson effect is significant to develop high-performance gyroscope recently. This paper theoretically analyses the high sensitivity of the typical superfluid gyroscope with double weak-links, which detect angular velocity by Cryogenic superfluid AC Josephson effect. The key problem, that the measure range of current system is too small to develop practical gyroscope, is also analysed. Then based on Flux-locking technology, this paper gives the design proposal to enlarging the measure range of the high sensitivity superfluid gyroscope system. And the system diagram is given. At last this paper analysis performance of the system including dynamic performance and measure range enlarged. The results show that the system can be used to measure angular velocity in general situation.