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应用科学学报 ›› 2009, Vol. 27 ›› Issue (3): 321-325.

• 控制与系统 • 上一篇    下一篇

新型低温哨音超流体陀螺模型

宋宝璋， 赵伟， 谢征， 刘建业1   

  1. 南京航空航天大学导航研究中心，南京210016
  • 收稿日期:2008-09-25 修回日期:2009-04-09 出版日期:2009-05-28 发布日期:2009-05-28
  • 通信作者: 刘建业，博士，教授，博导，研究方向：惯性技术、卫星定位、组合导航系统，E-mail：ljyac@nuaa.edu.cn

Modeling of New Quantum Whistling Superfluid Cryogenic Gyroscope

  1. Navigation Research Center, Nanjing Univesity of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2008-09-25 Revised:2009-04-09 Online:2009-05-28 Published:2009-05-28

PDF

1683

被引次数

10

摘要：

       针对应用超流体发展高精度新型陀螺的可行性，研究利用交流约瑟夫森效应的低温超流体陀螺原理和典型方案. 首先对陀螺的交流约瑟夫森效应、转动信息与交流约瑟夫森频率关系以及检测等环节建模，并进行系统仿真. 验证了陀螺敏感恒定角速度（地球自转）的过程，进一步研究变输入角速度跟踪、敏感面积及薄膜面积等结构参数对精度的影响. 仿真结果表明，应用交流约瑟夫森效应的低温超流体陀螺原理发展新型高精度陀螺仪是可行的.

关键词: 新型陀螺 , 超流体 , 交流约瑟夫森效应 , 建模与仿真

Abstract:

     The principle and typical project of the superfluid cryogenic gyroscope using ac-Josephson effects is studied to develop a high precision gyroscope based on superfluid. Mathematical model of the gyroscope including ac-Josephson effects, relations between rotation and ac-Josephson frequency, and signal detection method is obtained. The process of gyroscope sensing constant angular velocity (earth rotation) is simulated. Scouting angular velocity changes with time and the effects on precision due to structural parameters such as sense area and diaphragm area are studied. Simulation results show that it is feasible to develop a new high precision gyroscope based on ac-Josephson effects.

Key words: new gyroscope , superfluid , ac-Josephson effects , modeling and simulation

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