亚微弧度级激光跟踪转镜装配误差分析
Assembly Error Analysis of Laser Tracking Steering Prisms with Sub-microradian Order Accuracy
查看参考文献11篇
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文摘
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围绕亚微弧度量级激光跟踪转镜的光束指向精度问题,提出空间正交光学系统安装误差的分析方法。基于矢量折射定理的光线追击法,建立棱镜安装误差的归一化数学模型,分析不同安装误差对光束指向精度的影响,实现光束指向误差的定量分析。棱镜Π_1相对y轴的安装倾斜大于0.08″会导致出射光垂直张角ρ_V误差达到0.21 μrad,相对于x轴的安装倾斜大于0.2″会导致水平张角ρ_H误差达到0.5 μrad;棱镜Π_2相对z轴的安装倾斜大于0.2″会导致水平张角ρ_H误差达到0.22 μrad,而棱镜轴承的安装误差对光束指向精度的影响较小。研究结果为高精度光学跟踪系统设计提供了理论依据。 |
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其他语种文摘
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Focusing on the issue of the sub-microradian order tracking accuracy of cascade tilting prisms, the analysis method of the assembly error of spatial orthogonal optical system is proposed. Based on the vector form Snell's law for ray tracing, a normalized mathematical model of the prism assembly error is established, the influence of different error factors on beam tracking field is analyzed, and the quantitative analysis for the beam pointing error is carried out. For prism Π_1, if the inclination angle relative to y axis is greater than 0.08″, the error of vertical angle ρ_V for emergent light emergent light reaches 0.21 μrad, if the inclination angle relative to x axis is greater than 0.2″, the error of horizontal angle ρ_H for emergent light emergent light reaches 0.5 μrad. For prism Π_2, if the inclination angle relative to z axis is greater than 0.2″,the error of horizontal angle ρ_H for emergent light reaches 0.22 μrad, but the bearing assembly errors has little influence on the beam pointing errors. The study results has a great theoretical significance on the development of high-accuracy optical system. |
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来源
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机械工程学报
,2016,52(10):9-16 【核心库】
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DOI
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10.3901/jme.2016.10.009
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关键词
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光学器件
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激光跟踪
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装配误差
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亚微弧度级
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地址
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1.
同济大学机械与能源工程学院, 上海, 200092
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华南师范大学信息光电子科技学院, 广州, 510006
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中国科学院上海光学精密机械研究所, 上海, 201800
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0577-6686 |
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学科
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机械、仪表工业 |
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基金
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国家自然科学基金资助项目
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文献收藏号
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CSCD:5730746
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