中国激光, 2015, 42 (2): 0202006, 网络出版: 2015-01-19   

激光陀螺抗辐照读出系统方案研究

Research on a Method of Radiation-Resistant RLG Readout System
作者单位
中国航空工业集团公司西安飞行自动控制研究所, 陕西 西安 710065
摘要
为了提高环形激光陀螺(RLG)的空间环境适应性,提出了基于菲涅耳透镜的RLG 抗辐照读出方案。该方案采用菲涅耳透镜对RLG 输出的顺/逆时针光进行会聚,在其焦平面前方得到了条纹数不变、尺寸显著减小的干涉条纹。相比于采用普通凸透镜,基于菲涅耳透镜的读出系统在球差校正和安装便利性等方面更具优势。计算结果表明,该方案能将RLG 输出光斑尺寸降低到原水平的1%以下,显著降低了对光电管的尺寸要求,从而大幅减小了辐照对探测器的损伤,提高了RLG 的空间环境适应性。
Abstract
In order to improve the adaptability of ring laser gyro (RLG) in the outer space environment, a method about RLG output system based on Fresnel lens is proposed. After being converged by the Fresnel lens, the RLG′ s clockwise and anticlockwise beams forge a new array of fringe patterns in front of the focal plane, where the number of patterns does not change, but the size is significantly reduced. Compared with the ordinary convex lens, the Fresnel lens based RLG readout system may bring up advantages in the spherical aberration calibration and installing convenience. It is validated that compared with the traditional RLG readout system, this system can decrease the size of the beam spot down to less than 1% , enabling a smaller photodiode to be selected, and the radiation damage is significantly reduced, therefore the RLG′s adaptability of RLG in the outer space environment is improved.

李龙, 丁小昆, 陈林峰, 韩宗虎, 严吉中. 激光陀螺抗辐照读出系统方案研究[J]. 中国激光, 2015, 42(2): 0202006. Li Long, Ding Xiaokun, Chen Linfeng, Han Zonghu, Yan Jizhong. Research on a Method of Radiation-Resistant RLG Readout System[J]. Chinese Journal of Lasers, 2015, 42(2): 0202006.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!