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Fiber Bragg grating sensors for on-line welding diagnostics

Abstract: On-line monitoring of an arc-welding process is performed in this paper by means of fiber Bragg gratingtransducers (FBGs) in two different configurations. FBGs were glued to the plate surfaces next to the weldjoint, and a FBG transducer was designed to sense the perturbations in the air surrounding the weldingplasma column. Sensitivity to both temperature and vibrations during the process was analyzed duringseveral tungsten inert gas (TIG) welding tests, showing the feasibility of the proposed design to performan on-line detection of different welding perturbations. To enhance the analysis, a setup based on plasmaoptical spectroscopy was also employed to allow a comparison among the response of both techniquesto the appearance of these perturbations.

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 Autoría: Rodriguez-Cobo L., Mirapeix J., Ruiz-Lombera R., Cobo A., López-Higuera J.,

 Fuente: Journal of Materials Processing Technology 214 (2014) 839– 843

Editorial: Elsevier BV

 Año de publicación: 2014

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.jmatprotec.2013.11.026

ISSN: 0924-0136,1873-4774

Proyecto español: TEC2010-20224-C02-02

Url de la publicación: http://dx.doi.org/10.1016/j.jmatprotec.2013.11.026