Possibilities of Using Three-Dimensional Optical Scanning in Complex Geometrical Inspection
Possibilities of Using Three-Dimensional Optical Scanning in Complex Geometrical Inspection
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DOI：
10.5545/sv-jme.2010.152
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发表时间：
2011-11-01
影响因子：
1.7
通讯作者：
Acko, Bojan
中科院分区：
文献类型：
--
作者：
Brajlih, Tomaz;Tasic, Tadej;Acko, Bojan
非接触式光学三维测量、扫描和数字化越来越多地出现在质量保证系统中。与传统测量方法相比，光学扫描具有扫描过程简单、单次扫描获得的数据密度高以及集成逆向工程和检测的可能性等优点。由于测量数据的三维采集，光学扫描仪通常被认为是坐标测量机的替代选择。然而，通过光学扫描（即使使用高端系统）获得的测量数据的精度仍然远远低于高级坐标测量机所达到的水平。本文探讨了使用三维扫描仪进行工件检测的可能性。第一部分介绍了一个特殊的工件检测领域，即使目前可以达到的精度，光学扫描是一个可行的解决方案，用于检测制造的零件。此外，通过扫描几个量块来测试光学扫描仪可实现的尺寸精度。总之，通过扫描和验证球体，与坐标测量机进行了头对头比较。（C）2011年机械工程杂志。All rights reserved.
Non-contact optical three-dimensional measuring, scanning and digitising are increasingly present in quality assurance systems. Simple scanning procedures, high density of data acquired in a single scan, and the possibility of integrated reverse engineering and inspection, are all advantages of optical scanning compared to conventional measuring methods. Due to the three-dimensional acquisition of measuring data, an optical scanner is often considered to be an alternative possibility for coordinate measuring machines. However, the accuracy of the measured data acquired by optical scanning (even with a high-end system) is still far below the level achieved by high-level coordinate measuring machines. This paper examines the possibilities of using a three-dimensional scanner for workpiece inspection. The first part presents a special field of workpiece inspection in which, even with currently achievable accuracy, optical scanning is a viable solution for the inspection of manufactured parts. In addition, the achievable dimensional accuracy of an optical scanner is tested by scanning several gauge blocks. In conclusion, a head to head comparison with a coordinate measuring machine is made by scanning and verifying a sphere. (C)2011 Journal of Mechanical Engineering. All rights reserved.