中国激光, 2020, 47 (6): 0601009, 网络出版: 2020-06-03  

激光陀螺光束精密耦合方法与实验研究 下载: 779次

Beam Precision Coupling Method and Experiment of Ring Laser Gyroscope
作者单位
1 上海大学机电工程与自动化学院, 上海 200072
2 哈尔滨工业大学机器人技术与系统国家重点实验室, 黑龙江 哈尔滨 150080
摘要
针对目前人工进行光束精密耦合所存在的装配效率低,质量一致性差的问题,开发出了一套激光陀螺光束精密耦合装配系统。分析了激光陀螺光束精密耦合原理,发现耦合光束的光场强度具有高斯分布特点,提出了光电探测器位姿的调整方法。分析了合光棱镜转动时的光路变化,提出了合光棱镜位姿的调整方法。并制定了光电探测器位置和合光棱镜位姿调整策略。依据上述调整方法和策略,在激光陀螺光束精密耦合系统上进行了光束耦合装配实验,实验结果表明该实验装配平台能够完成光束精密耦合装配任务。
Abstract
In this study, we develop a ring laser gyroscope beam precision coupling assembly system to solve the problems of low assembly efficiency and poor quality consistency associated with manual beam precision coupling. Further, we analyze the principle of beam precision coupling with respect to ring laser gyroscope. Thus, the light field intensity of coupling beam is observed to follow a Gaussian distribution. Accordingly, we propose the photodetector pose adjustment method. Subsequently, the optical path change observed during the rotation of the optical prism is analyzed and a method is proposed to adjust the position of the combined prism. Additionally, an adjustment strategy is formulated with respect to the position of the photodetector and the attitude of the combined prism. Then, a beam coupling assembly experiment is conducted on the ring laser gyroscope beam precision coupling system according to the aforementioned adjustment methods and strategies. The experimental results demonstrate that the proposed experimental assembly platform can complete the beam precision coupling assembly task.

龚天乐, 欧阳航空, 马立, 赵志杰, 荣伟彬. 激光陀螺光束精密耦合方法与实验研究[J]. 中国激光, 2020, 47(6): 0601009. Gong Tianle, Ouyang Hangkong, Ma Li, Zhao Zhijie, Rong Weibin. Beam Precision Coupling Method and Experiment of Ring Laser Gyroscope[J]. Chinese Journal of Lasers, 2020, 47(6): 0601009.

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