Electromechanical Modeling of Ultrasonic Transducers

dc.contributor.author Schmerr, Lester
dc.contributor.author Dang, Chanjiu
dc.contributor.author Sedov, Alexander
dc.date 2018-02-14T08:19:03.000
dc.date.accessioned 2020-06-30T06:48:32Z
dc.date.available 2020-06-30T06:48:32Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 1998
dc.date.issued 1998
dc.description.abstract <p>A general model of an ultrasonic flaw measurement system can be developed using the fundamental reciprocity formulation of Auld [1]. This general model can be reduced to a more explicit form by assuming that the waves incident on the flaw are quasi-plane waves, resulting in the Thompson-Gray measurement model [2]. In the Thompson-Gray model, the frequency components of received voltage, V0(ω), in a pitch-catch immersion setup can be written in a product fashion as V0(ω)=β(ω)P(ω)M(ω)T1(ω)C1(ω)A(ω)T2(ω)C2(ω) where P(ω) accounts for the time delay in going from the transmitting transducer to the receiving transducer, M(ω) is due to the material attenuation, T 1(ω) and T 2((ω) are transmission terms that characterize the amplitude changes when going through the fluid- solid interfaces on transmission and reception, respectively, C 1(ω) and C 2(ω) are diffraction correction terms that account for the finite beam characteristics of the transducers on transmission and reception, and A(ω) is the far field scattering amplitude of the flaw. The term β(ω) is an “efficiency factor” that is a function of the electrical properties of the pulser/receiver, the associated cabling, and the ultrasonic transducers. Thus, β(ω) accounts for all the electrical to mechanical and mechanical to electrical conversion processes that contribute to the entire measurement process.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1998/allcontent/115/
dc.identifier.articleid 3707
dc.identifier.contextkey 5810501
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1998/allcontent/115
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/61268
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1998/allcontent/115/1998_Schmerr_ElectromechanicalModeling.pdf|||Fri Jan 14 18:51:26 UTC 2022
dc.source.uri 10.1007/978-1-4615-5339-7_115
dc.subject.keywords CNDE
dc.subject.keywords Aerospace Engineering
dc.title Electromechanical Modeling of Ultrasonic Transducers
dc.type event
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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