Rubén Ruiz Lombera

Experimental demonstration of a leakage monitoring system for large diameter water pipes using a fiber optic distributed sensor system

In this paper an experimental demonstration of a leakage monitoring system designed for large diameter water pipes is discussed. The proposed solution is a distributed optical fiber sensor system based on Brillouin scattering. The design and implementation of a specific infrastructure simulating the conditions to be found in field tests have allowed to carry out a comprehensive set of experiments that will show the feasibility of the proposed approach.

Colorimetric analysis for on-line arc-welding diagnostics by means of plasma optical spectroscopy

In this paper an analysis on the suitability of employing a colorimetric analysis of the acquired plasma spectra to perform online arc-welding quality monitoring will be discussed. Different colorimetric parameters like the color temperature will be evaluated in comparison to the standard approach based on the estimation of the plasma electronic temperature. In particular, experimental tests performed with a TIG arc-welding process will show that some colorimetric parameters exhibit a better response in terms of detection and correlation to some defects than the traditional spectroscopic approach.