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Proceedings Paper

The study on sensing of MIG welding pool surface based on structured light
Author(s): Nansheng Liu; Yanfeng Wang; Youzhi Yuan; Wei Luo; Xiaorui Liu
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Paper Abstract

The method with sensing of MIG welding pool surface is studied in this paper.The distributing of arc action spectrum, pool reflecting action spectrum and pool radiating action spectrum are analyzed. The radiation is weaker at interzone 500-700nm. So, the structured light source is confirmed to semiconductor laser at wavelength 650nm. Narrow band filter and neutral density filter are mounted on CCD, they are good for restrained the influence of arc. The pool width is studied on small current by experimented, deforming and distributing of structured light are confirmed. The form and sort of splash are studied, the method of reducing and protecting splash are also studied. Welding current is selected properly to restrained splash. Incident angle of structured light is 30 degree. The MIG pool image is captured by CCD. Deformed structured light fringes are reflected the information of the concave or convex of the pool.

Paper Details

Date Published: 2 February 2009
PDF: 6 pages
Proc. SPIE 7157, 2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications, 71571F (2 February 2009); doi: 10.1117/12.811450
Show Author Affiliations
Nansheng Liu, Nanchang Univ. (China)
Yanfeng Wang, Nanchang Univ. (China)
Youzhi Yuan, Nanchang Univ. (China)
Wei Luo, Nanchang Univ. (China)
Xiaorui Liu, Nanchang Univ. (China)


Published in SPIE Proceedings Vol. 7157:
2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications
Anbo Wang; YanBiao Liao; AiGuo Song; Yukihiro Ishii; Xudong Fan, Editor(s)

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