Analytical and Fundamental Study of EMATs System

Analytical and Fundamental Study of EMATs System

Electromagnetic Acoustic Transducers (EMATs) is one of the most important methods in NDE field that generate ultrasonic waves due to Lorentz and magnetostrictve forces. However, only the Lorentz mechanism is present in non-magnetic conducting materials. In most of the previous researches the effect...

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Main Authors: A. Doniavi, M. Eskandarzade, J. Malekani
Format: Article
Language:English
Published: IFSA Publishing, S.L. 2008-03-01
Series:Sensors & Transducers
Subjects:
EMATs
Acoustic
force density
Lorentz mechanism
magnetostrictve force
static magnetic field
Online Access:http://www.sensorsportal.com/HTML/DIGEST/march_08/P_250.pdf
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spelling doaj-4480feffb60d455aa1c49fd29b9cdac62020-11-24T21:07:09ZengIFSA Publishing, S.L.Sensors & Transducers2306-85151726-54792008-03-018937782Analytical and Fundamental Study of EMATs SystemA. Doniavi0M. Eskandarzade1J. Malekani2University of UrmiaUrmia University of TechnologyUniversity of UrmiaElectromagnetic Acoustic Transducers (EMATs) is one of the most important methods in NDE field that generate ultrasonic waves due to Lorentz and magnetostrictve forces. However, only the Lorentz mechanism is present in non-magnetic conducting materials. In most of the previous researches the effect of dynamic magnetic field has been neglected. Where is, it is significantly influence the wave propagation phenomena in an EMAT system. In this study have been investigated the Lorentz type EMAT system and complete equations of ultrasonic wave excitation force is derived. The developed equation shows that the dynamic component of total Lorentz force is in a different direction with static magnetic field one. And in some cases this type of force is significantly influence the total Lorentz force.http://www.sensorsportal.com/HTML/DIGEST/march_08/P_250.pdfEMATsAcousticforce densityLorentz mechanismmagnetostrictve forcestatic magnetic field
collection DOAJ
language English
format Article
sources DOAJ
author A. Doniavi
M. Eskandarzade
J. Malekani
spellingShingle A. Doniavi
M. Eskandarzade
J. Malekani
Analytical and Fundamental Study of EMATs System
Sensors & Transducers
EMATs
Acoustic
force density
Lorentz mechanism
magnetostrictve force
static magnetic field
author_facet A. Doniavi
M. Eskandarzade
J. Malekani
author_sort A. Doniavi
title Analytical and Fundamental Study of EMATs System
title_short Analytical and Fundamental Study of EMATs System
title_full Analytical and Fundamental Study of EMATs System
title_fullStr Analytical and Fundamental Study of EMATs System
title_full_unstemmed Analytical and Fundamental Study of EMATs System
title_sort analytical and fundamental study of emats system
publisher IFSA Publishing, S.L.
series Sensors & Transducers
issn 2306-8515
1726-5479
publishDate 2008-03-01
description Electromagnetic Acoustic Transducers (EMATs) is one of the most important methods in NDE field that generate ultrasonic waves due to Lorentz and magnetostrictve forces. However, only the Lorentz mechanism is present in non-magnetic conducting materials. In most of the previous researches the effect of dynamic magnetic field has been neglected. Where is, it is significantly influence the wave propagation phenomena in an EMAT system. In this study have been investigated the Lorentz type EMAT system and complete equations of ultrasonic wave excitation force is derived. The developed equation shows that the dynamic component of total Lorentz force is in a different direction with static magnetic field one. And in some cases this type of force is significantly influence the total Lorentz force.
topic EMATs
Acoustic
force density
Lorentz mechanism
magnetostrictve force
static magnetic field
url http://www.sensorsportal.com/HTML/DIGEST/march_08/P_250.pdf
work_keys_str_mv AT adoniavi analyticalandfundamentalstudyofematssystem
AT meskandarzade analyticalandfundamentalstudyofematssystem
AT jmalekani analyticalandfundamentalstudyofematssystem
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