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针对传统超流体干涉栅陀螺中梯度热相位的引入使得角速度信息被无用信息淹没而不易提取的突出问题,提出了一种无梯度热相位的多弱连接扇形超流体干涉栅陀螺结构,并对该陀螺的精度和灵敏度性能进行了深入的研究。首先在明晰了干涉栅结构中梯度热相位形成机理的基础上,设计了无梯度热相位且相邻干涉环路面积相等的新型干涉栅陀螺结构。其次建立了该陀螺的数学模型,验证了陀螺敏感角速度的过程。最后对该系统的角速度检测范围和灵敏度进行了深入分析,探究了敏感面积、薄膜面积、约瑟夫森频率、微孔数目和弱连接数对超流体干涉栅陀螺检测角速度的影响,通过仿真对比分析,验证了该结构陀螺的超高精度、超高灵敏度性能。
In order to solve the salient problem that the angular velocity information is inundated by unwanted information and is not easy to extract, a new type of multi-weakness connected fan-shaped superfluid interference grating with gyroscope is proposed. Gyro accuracy and sensitivity performance conducted in-depth study. Firstly, based on the clear formation mechanism of gradient thermal phase in the interference grating structure, a new type of interference grating gyroscope structure with no gradient thermal phase and the same area of adjacent interference rings is designed. Secondly, the mathematical model of the gyroscope is established, which verifies the gyroscope sensitive angular velocity. Finally, the detection range and sensitivity of the system are analyzed in depth. The effects of the sensitive area, film area, Josephson frequency, the number of micropholes and the number of weak connections on the detection angular velocity of the superfluid interference grating gyroscope are investigated. By comparing the simulation results, The ultra-high-precision and ultra-high-sensitivity performance of the structure gyro was verified.