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

被引：0
|
作者：
Yang B. [1 ]
Teng F. [1 ]
Zhang Z. [1 ]
Li Y. [1 ]
Chen X. [1 ]
Song N. [2 ]
机构：
[1] Beijing Institute of Control Engineering, Beijing
[2] Beihang University, Beijing
来源：
Zhongguo Guanxing Jishu Xuebao/Journal of Chinese Inertial Technology | 2022年 / 30卷 / 01期
关键词：
High precision fiber optic gyroscope; On orbit; Photonic crystal fiber; Solid-core photonic crystal fiber optic;
D O I：
10.13695/j.cnki.12-1222/o3.2022.01.016
中图分类号：
学科分类号：
摘要：
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 dB/km and polarization extinction ratio less than -24 dB/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 reaches 0.001 °/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. © 2022, Editorial Department of Journal of Chinese Inertial Technology. All right reserved.
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页码：113 / 120
页数：7
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