多弱连接扇形超流体干涉栅陀螺的性能分析

发布时间：2018-10-21 19:02

【摘要】：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。
[Abstract]:Aiming at the prominent problem that the gradient thermal phase in the traditional superfluid interferometric grating gyroscope causes the angular velocity information to be inundated by useless information and is difficult to extract, a multi-weakly connected sector superfluid interferometric grating gyro structure without gradient thermal phase is proposed. The precision and sensitivity of the gyroscope are studied. Based on the understanding of the formation mechanism of gradient thermal phase in the interferometric grating structure, a new type of interferometric grating gyroscope structure is designed, which has no gradient thermal phase and the same area of adjacent interference loop. Secondly, the mathematical model of the gyroscope is established to verify the process of the gyro's sensitive angular velocity. Finally, the detection range and sensitivity of the system are analyzed in depth, and the effects of sensitive area, film area, Josephson frequency, number of microholes and number of weak connections on the detection angular velocity of superfluid interferometric grating gyroscope are discussed. The performance of the structure gyroscope is verified by simulation and comparison.
【作者单位】：装备学院研究生管理大队;装备学院航天装备系;
【基金】：国家自然科学基金(51475472) 国家“863”计划(2015AA8018038C)~~
【分类号】：TN96

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