一种数字式激光陀螺腔长和抖动控制系统

A Digital Laser Gyro Path Length and Dither Control System

随着国防工业的飞速发展,对小型化、低功耗激光惯组的需求越来越迫切。设计了一种应用于激光陀螺仪的一体式、数字式的控制电路,电路将激光陀螺的腔长控制部分、抖动控制部分电路进行了集成设计,同时使用微控制器通过软件实现了腔长控制和抖动控制的核心部分,减少了硬件,降低了功耗。着重介绍了腔长控制电路和抖动控制电路的实现方式,并对电路的性能进行了测试分析,数据表明此电路满足系统使用要求。

With the rapid development of national defense industry, the demand for miniaturization, low power laser inertial measurement is becoming more and more urgent. This paper introduces an integrated digital control circuit for laser gyro. The circuit integrates the path length control（PLC） circuit and the dither control circuit of laser gyro. By using microcontroller to realize the PLC and dither control algorithm, the hardware is reduced and the power consumption is reduced.In this paper, the realization method of PLC circuit and dither control circuit are introduced, and the performance of the circuit is tested and analyzed. The data indicates that the circuit satisfies the system requirements.