Welding diagnostics by means of line-to-continuum method and SFFS spectral band selection
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AuthorMirapeix Serrano, Jesús María; García Allende, Pilar Beatriz; Cobo García, Adolfo; Conde Portilla, Olga María; Lomer Barboza, Mauro Matías; López Higuera, José Miguel
Plasma optical spectroscopy is a technique widely used for on-line welding diagnostics, given the rich information to be found within the plasma spectra generated during the process. One of the key factors in this regard is the computational performance of the whole monitoring system, as it determines the resulting spatial resolution. The electronic temperature of the welding plasma is typically used as the output monitoring parameter, but it requires an identification of the emission lines, what implies additional processing stages. In this paper we propose the use of the line-to-continuum method to generate the system output profiles, previously choosing the required spectral band by means of the SFFS algorithm.
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