基于三角法的激光位移传感器的设计及实现

摘要

三角法属于主动视觉测量方法，是非接触光学测量的一个重要形式。本文介绍了激光三角法测距的基本原理，对比不同类型的激光三角测量系统，并比较了其优缺点。利用三角法测量原理，通过线阵CCD、电子信号分析电路和单片机信号处理，设计并实现了一种高分辨率测距传感器，并对不同条件下的测试结果进行了分析，同时提出了改进方案。%Triangulation measurement is an initiative visual method, which is an important means of non-contact optical measurement. This paper introduces the basic principles of the laser triangulation measurement, compares laser triangulation systems with different sorts and gives the advantages and disadvantages. Based on the principles of the triangulation measurement, it designs and implements a distance measurement sensor with high resolution by linear array CCD, electronic signal analysis circuit and SCM signal processing. Through analyzing the test results in different conditions, it presents the improvement scheme.