基于PSD及激光器的空间基准系统研究  

Research on PSD and Lasers-based Spatial Benchmark System

作　　者：徐伟龙[1] 顾金良[1] 罗红娥[1] 夏言[1] 

机构地区：[1]南京理工大学瞬态物理重点实验室,南京210094

出　　处：《计算机测量与控制》2015年第4期1378-1380,共3页Computer Measurement &Control

基　　金：重点实验室基金及国家自然科学基金(61107010)

摘　　要：对多组阴影照相站同时抓拍的图像进行处理分析是目前弹丸飞行姿态测量的主要方法,而只有多组照相站在同一空间坐标系中时,才能将图像的特征点与该点对应的空间坐标联系起来,从而得到精确的结果;针对这一问题,提出了一种基于准直激光光源及光电位置传感器PSD的靶道空间基准系统;给出了根据准直激光光源及PSD实现靶道照相站空间坐标标定的方法;分析了此方法的测量精度;在研制的靶道空间基准系统上进行了调试,结果表明,基于准直激光光源及PSD的空间基准系统能够有效地消除人工操作引起的误差,经过对实测数据的分析,此空间基准系统的空间位置误差小于1mm。Processing and analysis images taken simultaneously by the sets of shadow photography stations, is the main method to measure the flight attitude of projectile. Only when all sets of shadow photography stations are in the same space coordinates system, image feature point can be related to its space coordinates, and then a precise result will be obtained. In order to solve this problem, a kind of ballistic range spatial benchmark system is designed, basing on the collimating laser source and position sensitive detector （PSD）. Then, the method based on them to calibrate space coordinates is proposed and its measurement accuracy is analyzed. What＇ s more, commissioning test of the ballistic range spatial benchmark system is done. Experimental results show that PSI） and Lasers-- based spatial benchmark system can effectively eliminate errors caused by the artificial operation between different stations, after analysis of the measured data, the spatial accuracy of the system is superior to 1 mm.

关 键 词：准直激光光源 光电位置传感器 靶道空间基准系统 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]