静电场定位导航基础与技术系统

Basic and technical system of electrostatic field positioning and navigation

  • 摘要: 从上世纪50年代起,惯性技术逐步在导航领域占据主导地位,在80年代开始的组合导航系统中,惯性技术仍占主导地位,但惯性导航技术一直受到设置初始值和随时间精度下降的困扰,且价格昂贵. 本文首先对静电陀螺及其支承原理进行阐述,处于高度真空的球形电极碗中的球形转子与碗电极之间的间隙很小,在电极与球形转子之间加上支承高压,形成强电场,当球形转子受到的静电力平衡时,球形转子就被支承起来. 又通过对静电场支承系统(electrostatic suspension system,ESS)转子位移测量电路误差进的定量分析和单项测试,阐述电路各元件在总漂移误差中的分离方法和结果. 在此基础上,归纳了提高精度指标的方法与途径,研制了全屏蔽、模块化结构电路,并装入了陀螺本体.

     

    Abstract: Since the 1950s, inertial technology has gradually occupied a dominant position in the field of navigation. In the integrated navigation system since the 1980s, inertial technology is still dominant. However, inertial navigation technology has been troubled by setting initial values and decreasing accuracy over time, and its price is high. The gap between the spherical rotor and the bowl electrode is very small. The supporting high pressure is added between the electrode and the rotor to form a strong electric field between the electrode and the spherical rotor. When the electrostatic force of the spherical rotor is balanced, the spherical rotor will be supported. Through the quantitative analysis and single test of ESS rotor displacement measurement circuit error, the separation method and results of each component in the total drift error are described. On this basis, the methods and ways to improve the precision index are summarized. The fully shielded and modular circuit is developed and loaded into the gyroscope body.

     

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