Feasibility study of imaging spectroscopy to monitor the quality of online welding
Applied Optics, Vol. 48, Issue 24, pp. 4735-4742 (2009)
http://dx.doi.org/10.1364/AO.48.004735
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Abstract
An online welding quality system based on the use of imaging spectroscopy is proposed and discussed. Plasma optical spectroscopy has already been successfully applied in this context by establishing a direct correlation between some spectroscopic parameters, e.g., the plasma electronic temperature and the resulting seam quality. Given that the use of the so-called hyperspectral devices provides both spatial and spectral information, we propose their use for the particular case of arc welding quality monitoring in an attempt to determine whether this technique would be suitable for this industrial situation. Experimental welding tests are presented, and the ability of the proposed solution to identify simulated defects is proved. Detailed spatial analyses suggest that this additional dimension can be used to improve the performance of the entire system.
© 2009 Optical Society of America
OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.4630) Instrumentation, measurement, and metrology : Optical inspection
(300.2140) Spectroscopy : Emission
(350.3850) Other areas of optics : Materials processing
ToC Category:
Spectroscopy
History
Original Manuscript: September 26, 2008
Revised Manuscript: July 17, 2009
Manuscript Accepted: July 29, 2009
Published: August 13, 2009
Citation
Jesús Mirapeix, P. Beatriz García-Allende, Adolfo Cobo, Olga M. Conde, and José M. López-Higuera, "Feasibility study of imaging spectroscopy to monitor the quality of online welding," Appl. Opt. 48, 4735-4742 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-24-4735
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