激光陀螺动态测角仪瞄准指示装置的研究

Research on collimation indicator in dynamic angular measurements with a RLG

动态测角应用广泛,技术难度大,利用激光陀螺研制的测角系统具有精度高,测量快,动态响应范围宽等特点。其中的瞄准指示装置为测量提供基准点,其精度及快速响应能力尤为重要。文章介绍了瞄准指示装置的光路结构以及瞄准原理,并通过对信号的仿真分析误差,在实验中结合激光陀螺的运用背景对其动态响应能力进行了测试,得到了在较低转速情况下的指零信号,验证了其可行性,提出了研制过程中需要注意的问题,为进一步研究在高速情况下信号的稳定性提供了基础。

Dynamic angle-measuring system has various utilities,and its technology is hard to realize.Dynamic angular-measuring system with a ring laser gyro shows many advantages such as high precision,high speed,wide dynamic response,etc.As a collimation device during the angle measuring,the high speed response and the precision of collimation indicator is especially important.This paper introduces the theory of the indicator,analyses questions which we should pay attention to in the research.At the same time,it achieves the collimation signal when the rotate speed is slow,and validates its feasibility by the experiments,it provides foundation for the research in the stability of the collimation signal when the rotate speed is high.