Characterization of Shear Horizontal Waves Using a 1D Laser Doppler Vibrometer

We developed a new technique for the detection of shear horizontal surface acoustic waves (SH-SAW) using a one-dimensional laser-based Doppler vibrometer. It measures the out-of-plane surface deformation at the fingertip of an interdigitated transducer (the boundary of the wave aperture) and uses it...

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Detalles Bibliográficos
Autores principales: Elhady, Alaa, Abdel-Rahman, Eihab M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038159/
https://www.ncbi.nlm.nih.gov/pubmed/33918268
http://dx.doi.org/10.3390/s21072467
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author Elhady, Alaa
Abdel-Rahman, Eihab M.
author_facet Elhady, Alaa
Abdel-Rahman, Eihab M.
author_sort Elhady, Alaa
collection PubMed
description We developed a new technique for the detection of shear horizontal surface acoustic waves (SH-SAW) using a one-dimensional laser-based Doppler vibrometer. It measures the out-of-plane surface deformation at the fingertip of an interdigitated transducer (the boundary of the wave aperture) and uses it to estimate the instantaneous in-plane displacement field given the substrate Poisson ratio. It can also estimate the degree of surface confinement (wave decay rate). The proposed approach was first verified using finite element analysis (FEA) and demonstrated experimentally using a Bleustein–Gulyaev resonator.
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spelling pubmed-80381592021-04-12 Characterization of Shear Horizontal Waves Using a 1D Laser Doppler Vibrometer Elhady, Alaa Abdel-Rahman, Eihab M. Sensors (Basel) Communication We developed a new technique for the detection of shear horizontal surface acoustic waves (SH-SAW) using a one-dimensional laser-based Doppler vibrometer. It measures the out-of-plane surface deformation at the fingertip of an interdigitated transducer (the boundary of the wave aperture) and uses it to estimate the instantaneous in-plane displacement field given the substrate Poisson ratio. It can also estimate the degree of surface confinement (wave decay rate). The proposed approach was first verified using finite element analysis (FEA) and demonstrated experimentally using a Bleustein–Gulyaev resonator. MDPI 2021-04-02 /pmc/articles/PMC8038159/ /pubmed/33918268 http://dx.doi.org/10.3390/s21072467 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 Communication
Elhady, Alaa
Abdel-Rahman, Eihab M.
Characterization of Shear Horizontal Waves Using a 1D Laser Doppler Vibrometer
title Characterization of Shear Horizontal Waves Using a 1D Laser Doppler Vibrometer
title_full Characterization of Shear Horizontal Waves Using a 1D Laser Doppler Vibrometer
title_fullStr Characterization of Shear Horizontal Waves Using a 1D Laser Doppler Vibrometer
title_full_unstemmed Characterization of Shear Horizontal Waves Using a 1D Laser Doppler Vibrometer
title_short Characterization of Shear Horizontal Waves Using a 1D Laser Doppler Vibrometer
title_sort characterization of shear horizontal waves using a 1d laser doppler vibrometer
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038159/
https://www.ncbi.nlm.nih.gov/pubmed/33918268
http://dx.doi.org/10.3390/s21072467
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