高速光电经纬仪变焦测量的测角精度分析  

Measuring accuracy analysis of photoelectric theodolite zoom measurement

作　　者：张建[1] 曹剑中[1] 武力[1] 武登山[1] 王胡顺[1] 

机构地区：[1]中国科学院西安光学精密机械研究所,陕西西安710119

出　　处：《光学技术》2011年第6期653-658,共6页Optical Technique

摘　　要：高速光电经纬仪的系统测角精度是一个复杂的函数关系,由多种因素决定。对一种采用了连续变焦镜头的高速光电经纬仪的测角精度进行了全面分析。首先对设备的测角总精度进行分类,并对变焦镜头在工作时产生的十字丝倾斜和所需要的焦距修正系数进行了深入的理论分析;然后通过实例和检测的情况分析了该设备的实时和事后的测角精度。为全面把握设备的性能、全面认识系统在变焦测量后的动态特性、探索变焦测量的测量方法以及实时分析空间定位精度提供了依据。The total measuring angular precision of a high-speed photoelectric theodolite is a complex functional relation,which depends on different factors.A full analysis of the measuring angular precision of a high-speed photoelectric theodolite that adops a continuous zoom lens is made.First,the total measuring angular precision of the device is classified.Next,the reticule tilt that arises from the working of the high-speed zoom lens and focal length correction factor are theoretically analyzed.Based on examples and tests,the real time and ex post facto measuring angular precision are analyzed.The analyzed results help us to understand the performance of the device and the dynamic property of the system after zoom measurement,explore the method of zoom measurement,and analyze real time spatialization precision.

关 键 词：光学测量 光电经纬仪 变焦测量 动态特性 测角精度 

分 类 号：TH74[机械工程—光学工程]