新型自由曲面三维激光扫描系统

从机械结构、控制系统及操作系统结构等几个角度介绍一种三维激光扫描系统设计方案。系统集成了先进的数据处理技术、激光扫描技术、先进控制技术及机器人技术，有效地借助于光机电一体化技术实现了表面检测及三维表面模型重构智能化及自动化。系统由具有电驱动装置的激光测头、C形滑臂、升降旋转台、电控系统及主控计算机组成。通过所设置测量参数，系统能够对不同的被测物体进行扫描路径规划，进而通过激光测头、C形滑臂及转台的全自动协调控制完成无盲点三维表面测量任务。试验结果表明，该三维激光扫描系统的扫描精度达到0.1 mm，速度为10 000点/s，能够应用于小型工件及模型、模具表面数据检测及模型重构。

Novel Free-form Surface 3D Laser Scanning System

An original design program of three-dimensional laser scanning system is introduced in terms of mechanical structure, control system and operating system structure. The presented system integrates optical, mechanical, electronic technologies, it includes advanced data processing technology, laser scanning technology, advanced control technology, robot technology and so on, so that 3D surface inspection and surface digital reconstruction are implemented automatically. The system consists of a laser probe with electric drive, a C-typeslide arm, lifting turntables, electronic control system and a master computer. The object with freeform surface can be scanned without any blind point. Furthermore, the adaptive path planning is available for the measurement process. The effectiveness of the proposed measurement machine is verified. Experimental result demonstrates that the scanning precision of the system is 0.1 mm and the scanning speed is 10 000 pts/s. The system can be applied in the surface data inspection and model reconstruction for small-sized workpiece and mould.