三维曲面轮廓的测量,传统方法都是采用表面轮廓仪或三坐标机测量,改进的方法有的是将激光三角测量头装在三坐标机上代替触针从而实现非接触测量,但这种改进方法仍然受到三坐标机本身的限制。本文在深入研究激光三角测量原理的基础上,提出了一种三维曲面的激光双三角测量法并给出了设计要点。 Three-dimensional surface contour measurement, the traditional method is the use of surface profiler or coordinate measuring machine, the improved method is to place the laser triangulation measuring head mounted on a coordinate machine to replace the stylus in order to achieve non-contact measurement, but this method of improvement is still subject to Three coordinate machine itself limits. Based on the deep research of laser triangulation theory, this paper presents a laser double triangulation method for three-dimensional surface and gives the design points.