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题名: An Imaging and Measurement System for Robust Reconstruction of Weld Pool During Arc Welding
作者: Wang ZZ(王振洲)
作者部门: 机器人学研究室
关键词: Closed-form solution ; dynamic ; measurement ; one-shot reconstruction ; weld pool
刊名: IEEE Transactions on Industrial Electronics
ISSN号: 0278-0046
出版日期: 2015
卷号: 62, 期号:8, 页码:5109-5118
收录类别: SCI ; EI
产权排序: 1
摘要: Robust measurement of the specular weld pool surface can help better understand the complex welding processes and provide feedback for robotic welding. The strong arc light and the specular surface of the weld pool make it difficult for the direct sensing measurement. In this paper, a novel imaging and measurement system is proposed, and it makes use of the strong penetrability of the laser to avoid the interference of arc light and obtain the surface information of the weld pool. By intercepting the reflection of a projected laser pattern twice, the proposed system gives a closed-form solution for each reflected ray and a closed-form solution for the corresponding point on the weld pool surface. The weld pool surface can be thus reconstructed by one-shot structured light projection. To increase the robustness of the measurement system, the least deformation principle is proposed to rectify the coefficient errors of the computed plane equation. Finally, a sequence of 3-D weld pools is reconstructed and compared with state-of-art literature. The comparison verifies that our method is significantly better than all the other methods in measuring the 3-D weld pool shapes.
语种: 英语
WOS记录号: WOS:000357268300044
WOS标题词: Science & Technology ; Technology
类目[WOS]: Automation & Control Systems ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
关键词[WOS]: THRESHOLD SELECTION METHOD ; MOBILE ROBOTS ; SURFACE ; ENTROPY ; GEOMETRY ; SEGMENTATION ; ENHANCEMENT ; HISTOGRAM ; TRACKING ; BEHAVIOR
研究领域[WOS]: Automation & Control Systems ; Engineering ; Instruments & Instrumentation
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/16699
Appears in Collections:机器人学研究室_期刊论文

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