激光三角法测量的研究

Study on Laser Triangulation Method Measurement

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。传统的光学三角法,改之以激光光源,并结合电子信号分析电路和计算机信号处理,使测量系统可以得到较高的精度,在三维形貌测量及其他应用中已有一定的研究并有相当的前景。该文较系统地分析了不同结构、不同类型的激光三角测量系统,并比较了其优缺点。针对实际应用中出现的对测量精度的影响因素,给出了相应的解决办法。

Triangulation measurement is initiative and non-contact. With the laser as lamp-house, electronic signal analyzing circuit and computer signal disposal, the triangulation measurement can achieve the higher precision, which is needed in many applications, such as three-dimension measurement, and has equivalent foreground. Laser triangulation systems with different structures and different sorts are introduced respectively and their characteristics are compared. Infective factors on precision in practice applications are discussed and the corresponding solutions.