平面镜多次反射的二维高精度小角度偏转测量  

High-accuracy Small-angle Rotary Measurement Based on Multiple-reflection in Plane Mirrors

作　　者：邓立新[1] 谭吉春[1] 范清春[2] 杨建坤[1] 郭辉[1] 戴穗安[1] 

机构地区：[1]国防科学技术大学理学院,长沙410073 [2]北京控制工程研究所,北京100190

出　　处：《光电工程》2010年第1期25-29,60,共6页Opto-Electronic Engineering

基　　金：国家自然科学基金资助项目(60673147);博士后科学基金资助项目(200904501445)

摘　　要：介绍了利用平面镜多次反射系统实现二维高精度小角度偏转测量的光学测量方法,构建了实验系统,针对系统的测量精度和测量范围与激光束在平面镜系统中反射次数的关系进行了研究,最后根据应用实例给出了具体的计算分析,研究结果表明,该方法具有结构简单、测量精度高的特点,当反射次数达到10次以上时,系统的测量精度将达到0.01″,为亚角秒级高精度动态测量提供了一种新的研究方法。An optoelectronic method of high-accuracy small-angle rotary measurement was introduced based on multiple-reflection between two plane mirrors,and an integrated experiment system was constructed. Then,the relationships between the system＇s measure precision and measure range with laser beam reflection times in plane mirrors was studied. Finally,an actual application example was calculated and analyzed. The analyzed result shows that the measurement method has the characteristics of high precision and simple structure. When the reflection times are above 10,system measurement precision will reach 0.01 arc second. It provides a new method for sub-second accuracy level dynamic angle measurement.

关 键 词：平面反射镜 多次反射 小角度偏转 二维测量 

分 类 号：TH751[机械工程—仪器科学与技术]