| 大尺寸空间角测量系统光轴指向不确定度评定 |
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| 引用本文： | 肖文健,马东玺,陈志斌,张勇,肖程,秦梦泽.大尺寸空间角测量系统光轴指向不确定度评定[J].红外与激光工程,2016,45(11):1118004-1118004(7). |
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| 作者姓名： | 肖文健 马东玺 陈志斌 张勇 肖程 秦梦泽 |
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| 作者单位： | 1.军械工程学院 军械技术研究所,河北 石家庄 050003 |
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| 基金项目： | 国家自然科学基金（51305455） |
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| 摘 要： | 由于被测对象相距较远，高精度的公共测量基准难以建立，因此大尺寸空间角测量的难度较大。为了解决大尺寸条件下空间角的现场测量问题，提出一种基于惯性基准的大尺寸空间角测量方法。首先，阐述了大尺寸空间角的测量原理并且设计了测量系统。然后，对测量系统中基于二维振镜的光轴指向不确定度进行了研究，重点分析了各类误差对光轴指向不确定度的影响。最后，利用蒙特卡洛仿真对各项误差所引起的光轴指向不确定度进行评定，为光轴跟踪装置的误差分配及其指向精度的现场评估等工作奠定了基础。
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| 关 键 词： | 大尺寸空间角 惯性测量 不确定度评定 蒙特卡洛 |
| 收稿时间： | 2016-03-05 |
Pointing uncertainty evaluation of optical axis in larg-scale spatial angle measuring system |
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| Affiliation: | 1.Ordnance Technology Institute,Ordnance Engineering College,Shijiazhuang 050003,China |
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| Abstract: | Because measured objects are far away, it is difficult to establish a high accurate common measurement reference in the measurement of large spatial angle. In order to achieve the larg-scale spatial angle measurement conveniently, a novel large spatial angle measurement method based on inertial reference was proposed. Firstly, the measuring principle of large spatial angle measurement was explained in detail and the measurement system was designed. Meanwhile, the pointing uncertainty of optical axis based on the two dimensional galvanometer in measurement system was studied and the influence of different errors on optical axis pointing was analyzed. Finally, the pointing uncertainty of optical axis caused by different errors was evaluated using Monte Carlo simulation. The research can lay a foundation for error allocation and pointing accuracy evaluation of the measurement system. |
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