【摘要】 本文介绍为静电陀螺找北仪设计的控制线路,内容包括径向修正的力反馈系统和计算机控制系统等。力反馈系统可以在较宽的频率范围内工作。采用计算机控制,使得陀螺能自动启动,提高了逐次启动的重复性,加速了启动过程。同时,计算机能对陀螺进行故障检测,以实现自动保护。应用这样的静电陀螺做成找北仪,找北精度可以达到角秒数量级。更多还原

【Abstract】 At present a precision electrostatically suspended gyro- scope has been succesfully developed in China.This gyroscope is small- er in dimension and lighter in weight.Its random drift is lower than 0.001°/h.A north-finder using this electrostatically suspended gyrosco- pe has high azimuth accuracy,better than 10 arcsec. This paper describes the control circuits of the north finder,inclu- ding a radial torque-to-balance system and a computer control system, etc.The radial torque-to-balance system can work in a wide frequency band.with the computer control system the gyro is able to start auto- matically in order to increase the repeatability of its bias drift rate. Furthermore,the computer system can detect the trouble of the electro- static suspension system and protect the gyro automatically.In this way the gyro will work reliably.更多还原