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三维激光扫描作为激光的重要应用之一,其需求甚广,在许多领域都发挥着重要作用(如反向工程),具有其他同类三维扫描技术所无法比拟的精度和范围。但是,由于其制造技术复杂,性能要求极高,因此只有少数国家能够掌握。文中介绍了激光测距,以及通过激光测距实现三维扫描的原理,提出了一种新的激光控制技术——直角反射式三维激光扫描技术,并给出了一种基于此方法的三维扫描仪的设计方案。最后,分析了造成该方法误差的几方面原因。实验结果表明:直角反射式三维激光扫描技术能够有效地提高三维激光扫描仪的性能和精度,并且在一定程度上降低三维激光扫描仪的制造难度。
As one of the most important applications of laser, 3D laser scanning is widely used and plays an important role in many fields (such as reverse engineering), with the accuracy and range unmatched by other similar 3D scanning technologies. However, due to its complex manufacturing technology and high performance requirements, only a few countries can handle it. In this paper, the principle of laser ranging and the realization of three-dimensional scanning by laser distance measurement are introduced. A new laser control technology, the right angle reflective three-dimensional laser scanning technology, is proposed. A three-dimensional scanner based on this method Design. Finally, the reasons for the error caused by this method are analyzed. Experimental results show that the right-angle reflective three-dimensional laser scanning technology can effectively improve the performance and accuracy of the three-dimensional laser scanner, and to a certain extent, reduce the manufacturing difficulty of the three-dimensional laser scanner.