| Vision-based detection of weld pool width in TIG welding of copper-clad aluminum cable |
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| 作者姓名： | 李云峰 赵熹华 李永强 |
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| 作者单位： | [1]College of Materials Science and Engineering, Jilin University, Changchun, 130022. [2]College of Materials Science and Engineering, Changchun Univesity of Technology, Changchun, 130012. |
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| 摘 要： | In order to realize automatic control of the width of weld pool, a visual sensor system for the width of weld pool detection is developed. By initiative arc light, the image of copper plate weld pool is taken back of the torch through the process of weakening and filtering arc light. In order to decrease the time of processing video signals, analog circuit is applied in the processing where video signals is magnified, trimmed and processed into binary on the datum of dynamic average value, therefore the waveform of video signals of weld pool is obtained. The method that is used for detecting the width of weld pool is established. Results show that the vision sensing method for real-time detecting weld pool width to copper-clad aluminum wire TIG welding is feasible. The response cycle of this system is no more than 50 ms, and the testing precision is less than 0. 1 mm.
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| 关 键 词： | 视觉传感器 电缆 焊接技术 检测技术 |
Vision-based detection of weld pool width in TIG welding of copper-clad aluminum cable |
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| Li Yunfeng,Zhao Xihua,Li Yongqiang.Vision-based detection of weld pool width in TIG welding of copper-clad aluminum cable[J].China Welding,2007,16(3):27-31. |
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| Authors: | Li Yunfeng Zhao Xihua Li Yongqiang |
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| Affiliation: | 1. College of Materials Science and Engineering,Jilin University,Changchun,130022;College of Materials Science and Engineering,Changchun Univesity of Technology,Changchun,130012
2. College of Materials Science and Engineering,Jilin University,Changchun,130022 |
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| Abstract: | In order to realize automatic control of the width of weld pool, a visual sensor system for the width of weld pool detection is developed. By initiative arc light, the image of copper plate weld pool is taken back of the torch through the process of weakening and filtering arc light. In order to decrease the time of processing video signals, analog circuit is applied in the processing where video signals is magnified, trimmed and processed into binary on the datum of dynamic average value, therefore the waveform of video signals of weld pool is obtained. The method that is used for detecting the width of weld pool is established. Results show that the vision sensing method for real-time detecting weld pool width to copper-clad aluminum wire TIG welding is feasible. The response cycle of this system is no more than 50 ms, and the testing precision is less than 0. 1 mm. |
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| Keywords: | visual sensor copper-clad aluminum cable TIG welding weld pool detection |
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