Smart Sound Processing for Defect Sizing in Pipelines Using EMAT Actuator Based Multi-Frequency Lamb Waves

Pipeline inspection is a topic of particular interest to the companies. Especially important is the defect sizing, which allows them to avoid subsequent costly repairs in their equipment. A solution for this issue is using ultrasonic waves sensed through Electro-Magnetic Acoustic Transducer (EMAT) a...

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Autores principales: García-Gómez, Joaquín, Gil-Pita, Roberto, Rosa-Zurera, Manuel, Romero-Camacho, Antonio, Jiménez-Garrido, Jesús Antonio, García-Benavides, Víctor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5876749/
https://www.ncbi.nlm.nih.gov/pubmed/29518927
http://dx.doi.org/10.3390/s18030802
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author García-Gómez, Joaquín
Gil-Pita, Roberto
Rosa-Zurera, Manuel
Romero-Camacho, Antonio
Jiménez-Garrido, Jesús Antonio
García-Benavides, Víctor
author_facet García-Gómez, Joaquín
Gil-Pita, Roberto
Rosa-Zurera, Manuel
Romero-Camacho, Antonio
Jiménez-Garrido, Jesús Antonio
García-Benavides, Víctor
author_sort García-Gómez, Joaquín
collection PubMed
description Pipeline inspection is a topic of particular interest to the companies. Especially important is the defect sizing, which allows them to avoid subsequent costly repairs in their equipment. A solution for this issue is using ultrasonic waves sensed through Electro-Magnetic Acoustic Transducer (EMAT) actuators. The main advantage of this technology is the absence of the need to have direct contact with the surface of the material under investigation, which must be a conductive one. Specifically interesting is the meander-line-coil based Lamb wave generation, since the directivity of the waves allows a study based in the circumferential wrap-around received signal. However, the variety of defect sizes changes the behavior of the signal when it passes through the pipeline. Because of that, it is necessary to apply advanced techniques based on Smart Sound Processing (SSP). These methods involve extracting useful information from the signals sensed with EMAT at different frequencies to obtain nonlinear estimations of the depth of the defect, and to select the features that better estimate the profile of the pipeline. The proposed technique has been tested using both simulated and real signals in steel pipelines, obtaining good results in terms of Root Mean Square Error (RMSE).
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spelling pubmed-58767492018-04-09 Smart Sound Processing for Defect Sizing in Pipelines Using EMAT Actuator Based Multi-Frequency Lamb Waves García-Gómez, Joaquín Gil-Pita, Roberto Rosa-Zurera, Manuel Romero-Camacho, Antonio Jiménez-Garrido, Jesús Antonio García-Benavides, Víctor Sensors (Basel) Article Pipeline inspection is a topic of particular interest to the companies. Especially important is the defect sizing, which allows them to avoid subsequent costly repairs in their equipment. A solution for this issue is using ultrasonic waves sensed through Electro-Magnetic Acoustic Transducer (EMAT) actuators. The main advantage of this technology is the absence of the need to have direct contact with the surface of the material under investigation, which must be a conductive one. Specifically interesting is the meander-line-coil based Lamb wave generation, since the directivity of the waves allows a study based in the circumferential wrap-around received signal. However, the variety of defect sizes changes the behavior of the signal when it passes through the pipeline. Because of that, it is necessary to apply advanced techniques based on Smart Sound Processing (SSP). These methods involve extracting useful information from the signals sensed with EMAT at different frequencies to obtain nonlinear estimations of the depth of the defect, and to select the features that better estimate the profile of the pipeline. The proposed technique has been tested using both simulated and real signals in steel pipelines, obtaining good results in terms of Root Mean Square Error (RMSE). MDPI 2018-03-07 /pmc/articles/PMC5876749/ /pubmed/29518927 http://dx.doi.org/10.3390/s18030802 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
García-Gómez, Joaquín
Gil-Pita, Roberto
Rosa-Zurera, Manuel
Romero-Camacho, Antonio
Jiménez-Garrido, Jesús Antonio
García-Benavides, Víctor
Smart Sound Processing for Defect Sizing in Pipelines Using EMAT Actuator Based Multi-Frequency Lamb Waves
title Smart Sound Processing for Defect Sizing in Pipelines Using EMAT Actuator Based Multi-Frequency Lamb Waves
title_full Smart Sound Processing for Defect Sizing in Pipelines Using EMAT Actuator Based Multi-Frequency Lamb Waves
title_fullStr Smart Sound Processing for Defect Sizing in Pipelines Using EMAT Actuator Based Multi-Frequency Lamb Waves
title_full_unstemmed Smart Sound Processing for Defect Sizing in Pipelines Using EMAT Actuator Based Multi-Frequency Lamb Waves
title_short Smart Sound Processing for Defect Sizing in Pipelines Using EMAT Actuator Based Multi-Frequency Lamb Waves
title_sort smart sound processing for defect sizing in pipelines using emat actuator based multi-frequency lamb waves
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5876749/
https://www.ncbi.nlm.nih.gov/pubmed/29518927
http://dx.doi.org/10.3390/s18030802
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