【摘要】 本文介绍了基于ＣＣＤ位置探测技术的远距离位移测量系统。将一明亮光标固定于被测目标位置上，用望远显微成象系统将光标成象于ＣＣＤ的光靶上，ＣＣＤ摄像机将靶面上的光信号转变为相应的电信号，利用数字图象处理技术可以精确地确定光标的位置。通过与初始位置的比较，可以测量被测目标所产生的微小位移。在６ｍ的测量距离上可获得０．０１ｍｍ的测量精度，而且通过改变光学系统可使测量距离扩大到１００ｍ甚至更远更多还原

【Abstract】 In this paper,a CCD position detection system for measuring displacements and deformations at long distance is introduced. A bright spot is fixed on the measured object and imaged to the target of CCD camera by a telescopic lens.The CCD target converts the optical information into equivalent electric information.The light intensity of spot is digitized into an array of 512×512 pixels by the analog to digital converter (ADC) and then transmitted into the microcomputer.The computer controls the data acquisition system,performs image processing and detects the position of spot.Comparing the position of spot with original one,the displacement of object is obtained.By using high accurate position detection software the accuracy of detection is up to 0.01mm when the distance between the object and the point of observation is 6m.This distance may be extended to 100m or more.更多还原