套孔法激光发散角测量误差分析  

Error Analysis on Measurement of Laser Divergence Angle by Hole-Set Method

作　　者：井晨睿 王朝晖[2] 马宝红[1] 廖腊梅 万悦芯 JING Chenrui;WANG Zhaohui;MA Baohong;LIAO Lamei;WAN Yuexin(Luoyang Normal University,Luoyang 471934,China;Luoyang Institute of Electro-Optical Equipment,AVIC,Luoyang 471000,China;Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China)

机构地区：[1]洛阳师范学院,河南洛阳471934 [2]中国航空工业集团公司洛阳电光设备研究所,河南洛阳471000 [3]中国科学院上海光学精密机械研究所,上海201800

出　　处：《电光与控制》2020年第12期101-104,共4页Electronics Optics & Control

基　　金：国家自然科学基金(11704174);河南省高等学校重点科研项目(17A140023)。

摘　　要：套孔法是机载激光探测系统在装调和检验过程中应用最为广泛的发散角测量方法之一。在实际测量过程中,光束质量、功率计灵敏度以及光阑定位精度等因素会造成发散角的测量值与真实值之间产生误差。为了分析误差产生的原因,采用激光的传输变换理论,分别针对测量过程中上述因素对测量准确度的影响进行仿真分析。研究结果可为发散角测量过程中光阑直径、透镜焦距、功率计灵敏度、光阑定位精度等关键参数的确定提供依据,从而降低测量误差,提高测量精度。The hole-set method is one of the most widely-used methods for measuring the divergence angle of airborne laser detection system in the process of alignment and inspection.In view of such factors as the quality of incident beamsensitivity of power meter and positioning accuracy of the stoperrors will occur between the measured value and the real value of the divergence angle.In this paperthe theory of laser transmission and transformation is adopted to analyze the influence of the above-mentioned factors on the measurement results.Our findings can provide instructions for the selection of such parameters as the diameter of the stopthe focal length of the lensessensitivity of power meter and positioning accuracy of the stop in the process of divergence angle measurementso as to reduce the measurement error and improve the measurement accuracy.

关 键 词：激光发散角 套孔法 测量误差 高斯光束 

分 类 号：TN958.98[电子电信—信号与信息处理]