快速、准确、高效获取自由曲面密集点的三维数据是逆向工程的关键问题。设计并开发了一种基于单点激光头的自由曲面三维激光测量系统,通过一套二维精密机械移动装置控制单点激光头匀速运动,从而获取完整的三维图像;解决了激光头与平移装置同步控制、系统数据采集与软件同步接收等关键技术;实验结果证明了这套三维测量系统可用于自由曲面高精度原型数据采集。 Fast, accurate and efficient access to the freeform surface of the dense point of the three-dimensional data is the key issue of reverse engineering. A 3-D laser measuring system based on a single-point laser head is designed and developed. A set of 2-D precision mechanical moving device is used to control the uniform movement of the single-point laser head to get a complete three-dimensional image. The laser head and the translation device Synchronization control, system data acquisition and software synchronization acquisition. The experimental results show that the three-dimensional measurement system can be used for high-precision prototyping of freeform surface.