高效的卫星用光纤陀螺组合状态监控系统  

High efficient FOG combined state monitoring system for satellite

作　　者：金靖[1] 张丁 JIN Jing;ZHANG Ding(School of Instrument Science and Opto-eleetric Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191

出　　处：《传感器与微系统》2018年第7期78-80,83,共4页Transducer and Microsystem Technologies

摘　　要：为了对卫星用光纤陀螺的运行状态进行实时监控,及时发现其因内部温度、光功率等变化而造成的故障,设计了一种高效的卫星用光纤陀螺组合状态监控系统:基于光纤陀螺波导的温度特性,实现了光纤陀螺的无硬件测温;通过提取光电探测器信号,实现了对光纤陀螺光功率的监测。搭建了基于现场可编程门阵列(FPGA)+控制器局域网(CAN)总线的光纤陀螺接口电路,将光纤陀螺状态监控数据同陀螺四轴角速度数据合并发送至星务主机,在实时采集卫星用光纤陀螺输出角速度数据的同时,实现了温度、光功率组合状态信息的监控。相比于传统光纤陀螺状态监控方法,组合状态监控系统无需额外添加测温器件,高效利用卫星用光纤陀螺的内部光路、电路实现温度、光功率传感,提高了系统的可靠性与安全性。In order to monitor running status of fiber-optic gyroscope（FOG） for satellite in real time,and find out the fault caused by internal temperature and optical power changes, a high efficient FOG combined state monitoring system for satellite is designed. Based on temperature characteristic of FOG waveguide, temperature sensing without hardware is realized. The optical power of FOG is monitored by extracting the photodetector signal. The interface circuit based on FPGA ＋ CAN bus is built up. Acquire output angular velocity data of FOG in real-time for satellite at the same time, achieve temperature, optical power combined state information monitoring. Compared with the traditional state monitoring method of FOG, the proposed combined state monitoring system does not need add special temperature measuring component, it uses internal circuit , optical path high efficiently to realize temperature and optical power sensing, and system rcliability and security are improved.

关 键 词：卫星用光纤陀螺 温度 光功率 状态监控 现场可编程门阵列 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]