TY - JOUR 
A1 - Gómez Muñoz, Carlos Quiterio
AU - García Márquez, Fausto Pedro
AU - Lev, Benjamín
AU - Arcos Jiménez, Alfredo
T1 - New Pipe Notch Detection and Location Method for Short Distances employing Ultrasonic Guided Waves
Y1 - 2017
SN - 1610-1928
UR - http://hdl.handle.net/11268/6952
AB - This paper presents a novel signal processing approach that is able to automatically identify notches in pipelines
in short distances. In addition, this method locates the geometric position of the notch and determines the size.
The approach for fault detection and diagnosis presented look for a solution and then validates the solution
by analyzing the signal which flows in the opposite direction. Micro Fiber Composite (MFC) transducers are
used in an austenitic stainless steel pipeline, used in solar concentrators, in order to generate Ultrasonic Guided
Waves. The main results presented in this paper can be summarized as: identification of edges or welds by
multi-parametric analysis and comparison with the theoretical results predicted, notch location in the pipe by
comparison of the position of echoes weighted with their amplitudes, and the flow sizing of them by using
attenuation curves of the echoes when they propagate along the pipeline. This approach leads to employ only
one transmitter and one receptor for notch detection, location and diagnosis. The main advantage for the industry
is the double check of presence of a notch with respect to other systems, which reduces false alarms during the
inspections.
KW - Proceso de señales
KW - Ultrasonidos
KW - Propagación de ondas acústicas
LA - eng
ER -