Pulsed Multifrequency Excitation and Spectrogram Eddy Current Testing (PMFES-ECT) for Nondestructive Evaluation of Conducting Materials

This paper presents a new method for nondestructive testing—a pulsed multifrequency excitation and spectrogram eddy current testing (PMFES-ECT), which is an extension of the multifrequency excitation and spectrogram eddy current testing. The new method uses excitation in the form of pulses repeated...

Descripción completa

Detalles Bibliográficos
Autores principales: Grochowalski, Jacek Michał, Chady, Tomasz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8465202/
https://www.ncbi.nlm.nih.gov/pubmed/34576535
http://dx.doi.org/10.3390/ma14185311
_version_ 1784572811450253312
author Grochowalski, Jacek Michał
Chady, Tomasz
author_facet Grochowalski, Jacek Michał
Chady, Tomasz
author_sort Grochowalski, Jacek Michał
collection PubMed
description This paper presents a new method for nondestructive testing—a pulsed multifrequency excitation and spectrogram eddy current testing (PMFES-ECT), which is an extension of the multifrequency excitation and spectrogram eddy current testing. The new method uses excitation in the form of pulses repeated at a specified time, containing several periods of a waveform consisting of the sum of sinusoids with a selected frequency, amplitude and phase. This solution allows the maintenance of the advantages of multifrequency excitation and, at the same time, generates high energy pulses similar to those used in pulse eddy current testing (PECT). The effectiveness of the new method was confirmed by numerical simulations and the measurement of thin Inconel plates, consisting of notches manufactured by the electric-discharge method.
format Online
Article
Text
id pubmed-8465202
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-84652022021-09-27 Pulsed Multifrequency Excitation and Spectrogram Eddy Current Testing (PMFES-ECT) for Nondestructive Evaluation of Conducting Materials Grochowalski, Jacek Michał Chady, Tomasz Materials (Basel) Article This paper presents a new method for nondestructive testing—a pulsed multifrequency excitation and spectrogram eddy current testing (PMFES-ECT), which is an extension of the multifrequency excitation and spectrogram eddy current testing. The new method uses excitation in the form of pulses repeated at a specified time, containing several periods of a waveform consisting of the sum of sinusoids with a selected frequency, amplitude and phase. This solution allows the maintenance of the advantages of multifrequency excitation and, at the same time, generates high energy pulses similar to those used in pulse eddy current testing (PECT). The effectiveness of the new method was confirmed by numerical simulations and the measurement of thin Inconel plates, consisting of notches manufactured by the electric-discharge method. MDPI 2021-09-15 /pmc/articles/PMC8465202/ /pubmed/34576535 http://dx.doi.org/10.3390/ma14185311 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Grochowalski, Jacek Michał
Chady, Tomasz
Pulsed Multifrequency Excitation and Spectrogram Eddy Current Testing (PMFES-ECT) for Nondestructive Evaluation of Conducting Materials
title Pulsed Multifrequency Excitation and Spectrogram Eddy Current Testing (PMFES-ECT) for Nondestructive Evaluation of Conducting Materials
title_full Pulsed Multifrequency Excitation and Spectrogram Eddy Current Testing (PMFES-ECT) for Nondestructive Evaluation of Conducting Materials
title_fullStr Pulsed Multifrequency Excitation and Spectrogram Eddy Current Testing (PMFES-ECT) for Nondestructive Evaluation of Conducting Materials
title_full_unstemmed Pulsed Multifrequency Excitation and Spectrogram Eddy Current Testing (PMFES-ECT) for Nondestructive Evaluation of Conducting Materials
title_short Pulsed Multifrequency Excitation and Spectrogram Eddy Current Testing (PMFES-ECT) for Nondestructive Evaluation of Conducting Materials
title_sort pulsed multifrequency excitation and spectrogram eddy current testing (pmfes-ect) for nondestructive evaluation of conducting materials
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8465202/
https://www.ncbi.nlm.nih.gov/pubmed/34576535
http://dx.doi.org/10.3390/ma14185311
work_keys_str_mv AT grochowalskijacekmichał pulsedmultifrequencyexcitationandspectrogrameddycurrenttestingpmfesectfornondestructiveevaluationofconductingmaterials
AT chadytomasz pulsedmultifrequencyexcitationandspectrogrameddycurrenttestingpmfesectfornondestructiveevaluationofconductingmaterials