A New Conservation Law Description of an Electromagnetic Acoustic Transducer in the Time Domain

dc.contributor.author Ludwig, R.
dc.contributor.author Dai, X.-W.
dc.contributor.author Palanisamy, R.
dc.date 2018-02-14T06:54:10.000
dc.date.accessioned 2020-06-30T06:39:07Z
dc.date.available 2020-06-30T06:39:07Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 1992
dc.date.issued 1992
dc.description.abstract <p>This paper presents a unified theoretical formulation describing the electrodynamic transduction process governing the transmitter behavior of an Electromagnetic Acoustic Transducer (EMAT) in the time domain. This new approach establishes separate electrical, mechanical and material formulations, so-called subsystems, based on momentum conservation forms of Maxwell’s field equations in the quasi-static limit and Cauchy’s law of motion. Thus, instead of acounting for the electromagnetic acoustic material interaction by direct linkage of mechanical stress tensor and magnetic flux density via constitutive relations [1], the coupling of the field tensors is achieved by relying on a material subsystem. This subsystem, which takes into account the specimen, interfaces between the electrical and mechanical subsystems in a self-consistent way. As a result, the complete set of governing equations and associated boundary conditions can be derived from first principles.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1992/allcontent/134/
dc.identifier.articleid 3023
dc.identifier.contextkey 5800951
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1992/allcontent/134
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/59930
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1992/allcontent/134/1992_Ludwig_NewConservation.pdf|||Fri Jan 14 19:51:30 UTC 2022
dc.source.uri 10.1007/978-1-4615-3344-3_134
dc.subject.disciplines Acoustics, Dynamics, and Controls
dc.title A New Conservation Law Description of an Electromagnetic Acoustic Transducer in the Time Domain
dc.type event
dc.type.genre article
dspace.entity.type Publication
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