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Second Harmonic Modulation for Ultrasonic Signals Based on the Design of the Phononic Crystal Filter

Nonlinear ultrasonic non-destructive testing (NDT) is a widely used method for detecting micro-damages in various materials and structures due to its high sensitivity and directional capability. However, the extraction and modulation of extremely weak nonlinear ultrasonic signals is quite a challeng...

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Detalles Bibliográficos
Autores principales: Zhu, Yue, Zhao, Youxuan, Cao, Peng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10675146/
https://www.ncbi.nlm.nih.gov/pubmed/38005613
http://dx.doi.org/10.3390/s23229227
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author Zhu, Yue
Zhao, Youxuan
Cao, Peng
author_facet Zhu, Yue
Zhao, Youxuan
Cao, Peng
author_sort Zhu, Yue
collection PubMed
description Nonlinear ultrasonic non-destructive testing (NDT) is a widely used method for detecting micro-damages in various materials and structures due to its high sensitivity and directional capability. However, the extraction and modulation of extremely weak nonlinear ultrasonic signals is quite a challenge in practical applications. Therefore, this paper focuses on the second harmonic modulation signal method in nonlinear ultrasonic NDT and proposes the design of the phononic crystal filter (PC filter) to achieve this filtering function. Through finite element simulations, it is demonstrated that the filtering frequency of the filter is influenced by the structural configuration, material wave speed, and geometric characteristics. Then, the design method for cubic PC filters is established. Furthermore, a time-domain finite element method is introduced to verify the filtering ability of the filter and further validate the rationality of this design approach.
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spelling pubmed-106751462023-11-16 Second Harmonic Modulation for Ultrasonic Signals Based on the Design of the Phononic Crystal Filter Zhu, Yue Zhao, Youxuan Cao, Peng Sensors (Basel) Article Nonlinear ultrasonic non-destructive testing (NDT) is a widely used method for detecting micro-damages in various materials and structures due to its high sensitivity and directional capability. However, the extraction and modulation of extremely weak nonlinear ultrasonic signals is quite a challenge in practical applications. Therefore, this paper focuses on the second harmonic modulation signal method in nonlinear ultrasonic NDT and proposes the design of the phononic crystal filter (PC filter) to achieve this filtering function. Through finite element simulations, it is demonstrated that the filtering frequency of the filter is influenced by the structural configuration, material wave speed, and geometric characteristics. Then, the design method for cubic PC filters is established. Furthermore, a time-domain finite element method is introduced to verify the filtering ability of the filter and further validate the rationality of this design approach. MDPI 2023-11-16 /pmc/articles/PMC10675146/ /pubmed/38005613 http://dx.doi.org/10.3390/s23229227 Text en © 2023 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
Zhu, Yue
Zhao, Youxuan
Cao, Peng
Second Harmonic Modulation for Ultrasonic Signals Based on the Design of the Phononic Crystal Filter
title Second Harmonic Modulation for Ultrasonic Signals Based on the Design of the Phononic Crystal Filter
title_full Second Harmonic Modulation for Ultrasonic Signals Based on the Design of the Phononic Crystal Filter
title_fullStr Second Harmonic Modulation for Ultrasonic Signals Based on the Design of the Phononic Crystal Filter
title_full_unstemmed Second Harmonic Modulation for Ultrasonic Signals Based on the Design of the Phononic Crystal Filter
title_short Second Harmonic Modulation for Ultrasonic Signals Based on the Design of the Phononic Crystal Filter
title_sort second harmonic modulation for ultrasonic signals based on the design of the phononic crystal filter
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10675146/
https://www.ncbi.nlm.nih.gov/pubmed/38005613
http://dx.doi.org/10.3390/s23229227
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