光学
椭圆
补偿(心理学)
激光器
梁(结构)
质心
光路
光束参数积
激光束质量
光路长度
路径(计算)
计算机科学
激光束
物理
人工智能
程序设计语言
心理学
精神分析
天文
作者
Weizhe Cheng,Haobo Cheng,Yongfu Wen,Yunpeng Feng,Guo Yan,Min Hu
出处
期刊:Optical Engineering
[SPIE - International Society for Optical Engineering]
日期:2020-02-27
卷期号:59 (02): 1-1
被引量:1
标识
DOI:10.1117/1.oe.59.2.024112
摘要
A telephoto structure-based laser autocollimation with common-path compensation method is proposed to compensate laser beam drift of laser autocollimator. According to the analysis, the measurement beam and the reference beam propagate alongside nearly the same path with approximately identical amounts of drift. Moreover, the ellipses fitting algorithm based on least square approach ensures the accuracy of extracting centroid of the beam while the only photodetector (CCD) with the telephoto objective and several reflectors guarantees the compaction and effectiveness of the system. Simulations and experiments demonstrate a significant beam drift compensation result up to 86.5%. In other words, the stability of the laser beam in the process of measurement is improved.
科研通智能强力驱动
Strongly Powered by AbleSci AI