期刊
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
卷 59, 期 7, 页码 1841-1849出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIM.2009.2028222
关键词
Flaw detection; inspection; machine vision; visual system; welding
资金
- National High Technology Research and Development Program of China [2006AA04Z213]
- National Natural Science Foundation of China [60725309]
- Research Grants Council of Hong Kong [CityU117507]
Weld bead inspection is important for high-quality welding. This paper summarizes our work on weld bead profile measurement, monitoring, and defect detection using a structured light-based vision inspection system. The configuration of the sensor is described and analyzed. In this configuration, the system presented in this paper can easily be calibrated. The image processing and extraction algorithms for laser profiles and feature points are presented. The dimensional parameters of the weld bead are measured, and the weld defects are detected during multilayer welding processes. Experiments using the vision inspection system were conducted with satisfactory results for online inspection.
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