三轴激光陀螺放电状态监控

Monitoring the Discharge Status of Three-axis Laser Gyro

对三轴激光陀螺的结构及串扰现象作了简要介绍,提出了放电状态监控电路的必要性。基于所设计的高压稳流电源电路,提出在高压电源每一稳流支路加入一路模拟开关,来控制稳流和状态监控的时序,从而通过监测采样电阻的端电压来实现放电状态的监控,并详细阐述了三轴放电状态监控电路的软硬件实现。最后对电路进行了实验测试,三轴激光陀螺在5s内的点燃率达到100%,电流的长期稳定度优于1×10-4,验证了状态监控电路的可行性和可靠性。

The structUre and the incorrect discharge status of three-axis laser gyro are introduced briefly. The necessity of status monitoring circuit is proposed. Based on the designed high voltage and current stability circuit, the sequence between current stability and status monitoring is controlled by adding an analog switch to each current stability branch of the high voltage power supply. The status monitoring is also realized by monitoring the voltages of the sampling resistances. Moreover, the realization of software and hardware of status monitoring circuit for three-axis laser gyro are introduced in detail. In the end, the circuit is tested, the ignition ratio of three-axis laser gyro isup to 100% in 5 seconds and long-term current stability exceeds 1×10^-4. The feasibility and reliability of the circuit is validated.