光纤陀螺启动过程标度因数补偿方法  

Compensation technique of scale factor during FOG start-up

作　　者：李彬 谢良平[1] 刘卓 魏飞 张斌[1] 马海全[1] LI Bin, XIE Liangping, LIU Zhuo, WEI Fei, ZHANG Bin, MA Haiquan(AVIC Xi＇an Flight Automatic Control Research Institute, Xi＇an 710065, China)

机构地区：[1]中国航空工业集团公司西安飞行自动控制研究所,西安710065

出　　处：《中国惯性技术学报》2018年第4期495-498,共4页Journal of Chinese Inertial Technology

基　　金：装备预研项目(41417010102)

摘　　要：针对光纤陀螺启动过程标度因数变化大、稳定时间长的问题,提出标度因数补偿方案。分析了光纤陀螺启动过程中标度因数误差及超辐射发光二极管平均波长随温度变化误差产生的物理机制,建立了启动过程中标度因数误差的数学模型。进一步提出了一种通过测量温控电桥电路THERMIN端电压实时补偿启动过程标度因数的方案。试验结果表明,启动过程中(2 s内)光纤陀螺标度因数误差峰峰值从约25 000×10^(-6)降低到小于300×10^(-6),大幅提高了启动过程标度因数性能,满足了武器系统的快速启动需求。To solve the problem that the FOG＇s scale factor varies significantly and take long time to stabilize in the starting process of FOG, a novel compensative scheme for the scale factor is proposed. Based on the mechanism analysis of scale factor error and temperature-related mean wavelength shift of super luminescent diode in FOG, a mathematical model of the scale factor error during FOG start-up is established, from which a real-time scale factor compensation scheme by measuring the voltage of THERMIN terminal in thermal control bridge circuit is given. The experiment result shows that the scheme decreases peak-to-peak value of the scale factor error from about 25 000×10^（-6） to 300×10^（-6） during FOG start-up（within 2 s）, which show that the proposed method significantly improves the scale factor performance and meets requirements of the quick-response weapon systems.

关 键 词：光纤陀螺 超辐射发光二极管 平均波长 快速启动 标度因数误差 

分 类 号：U666.1[交通运输工程—船舶及航道工程]