陀螺壳体旋转监控技术(英文)

Research of Gyro Case Rotating Monitor Technique

陀螺壳体旋转法监控技术有助于提高平台罗经系统精度、减少陀螺漂移与加速度计误差。本文首先介绍了该项技术的应用背景 ;详细阐述了系统结构特性、基本工作原理、机械编排与稳定回路 ,以及实现方法 ;本文深入研究了旋转平台转速的选取方法并分析了系统误差 ;最后计算了典型情况下旋转壳体的转速。结果表明 :采用陀螺壳体旋转法监控技术可以有效地调制陀螺漂移、从理论上可提高陀螺仪精度二至三个数量级 。

The gyro case rotating monitor technique is to increase the system accuracy and to decrease the gyro drift and accelerometer error in stabilized gyrocompass. This paper introduces the application background, presents detailed discussion on the structural features, the basic operation principle, the signal flow and stabilized loop, and the specific implementation method. The paper also discusses the angular velocity choice, analyses the system error of the stabilized gyrocompass, and then calculates the angular velocity of the rotating case in typical situation. The results show that shis technique can efficiently modulate the gyroscope drift,and greatly promote the gyroscope precision by one to two orders of magnitude consequently. It is shown that relatively high system precision is attainable by using the gyroscope with lower precision in the stabilized gyrocompass.