高精度光子晶体光纤陀螺设计及在轨应用验证  

On orbit validation and design of high precision photonic crystal fiber optic gyroscope

作　　者：杨博[1] 滕飞 张智昊 李勇[1] 陈小娟[1] 宋凝芳[2] YANG Bo;TENG Fei;ZHANG Zhihao;LI Yong;CHEN Xiaojuan;SONG Ningfang(Beijing Institute of Control Engineering,Beijing 100190,China;Beihang University,Beijing 100191,China)

机构地区：[1]北京控制工程研究所,北京100190 [2]北京航空航天大学,北京100191

出　　处：《中国惯性技术学报》2022年第1期113-120,共8页Journal of Chinese Inertial Technology

基　　金：装备发展预研项目(41417060102)。

摘　　要：针对空间辐照带来的光功率衰减和卫星轨道周期带来的周期性温变效应,基于光子晶体光纤单一材料特点带来的抗辐照和弱温度敏感特性,提出开展空间用高精度光子晶体光纤陀螺技术研究。通过设计实芯光子晶体光纤结构,完成损耗<1.5 d B/km、偏振串音<-24 d B/km和直径135μm的光子晶体光纤技术验证,并采用八极对称绕制技术完成3800 m光子晶体光纤环的绕制及性能测试,实现零偏稳定性优于0.001°/h、随机游走系数优于0.00016°√h的技术指标。同时结合空间应用的实际需求,开展了可靠性试验,并完成3斜装构形光子晶体光纤陀螺组件的研制,并于2020年12月22日发射入轨,评估精度与地面测试结果相当,产品运行稳定,性能优异。Aiming at the optical power attenuation caused by space irradiation and the periodic temperature fluctuation caused by satellite orbit period,high precision photonic crystal fiber optic gyroscope has been carried out due to the characteristics of radiation resistance and week temperature sensitivity brought by the single material characteristics.By designing the structure of solid core photonic crystal fiber,the technical verification of photonic crystal fiber with loss less than 1.5 d B/km and polarization extinction ratio less than-24 d B/km is obtained and photonic crystal fiber ring with the length of 3800 m is wound by octupole symmetric winding technology.By optimizing the closed-loop detection scheme,bias stability reaches0.001°/h and RWC reaches 0.00016°√h in normal temperature and static conditions.In addition,reliability experiments are carried out due to the requirement of space application,and inertial core unit(ICU)with three independent angular rate detection axes in a skewed configuration is developed,which has been launched on December 22,2020 successfully.And on orbit data show that the preliminary evaluation accuracy reaches the requirement of spacecraft and all indexes exhibits excellent.

关 键 词：高精度光纤陀螺 光子晶体光纤 实芯光子晶体光纤陀螺 在轨应用 

分 类 号：V19[航空宇航科学与技术—人机与环境工程]