An experimental study of tomographic imaging in layered media

dc.contributor.author Wang, Y.
dc.contributor.author Kline, R.
dc.date 2018-02-14T03:02:36.000
dc.date.accessioned 2020-06-30T06:39:58Z
dc.date.available 2020-06-30T06:39:58Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 1993
dc.date.issued 1993
dc.description.abstract <p>Ultrasonic tomography has found its applications in material evaluation since the later 70’s. However, the techniques in this field are far less developed compared to their x-ray counterparts, which have been widely used in the medical community. One of the practical problems in acoustic tomography is that acoustic waves will not necessarily propagate along straight paths in a nonhomogeneous medium. The situation will be more complicated when material inhomogeneities are coupled with anisotropy as the approach is applied to composite media. In order to resolve the situation, one has either to tolerate the consequence of using straight line ray paths or to seek a way to correct the errors due to ray bending. Indeed, most of the previous work in this area has been based on the straight path assumption. As pointed out by Dines and Lytle[1], if the material inhomogeneity is not serious, the errors caused by straight path assumption can be safely neglected. However, in practice, situations may arise where serious inhomogeneities exist. Even with small inhomogeneities correction is highly desirable when accuracy is of particular concern.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1993/allcontent/106/
dc.identifier.articleid 1343
dc.identifier.contextkey 5774118
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1993/allcontent/106
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/60054
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1993/allcontent/106/1993_Wang_ExperimentalStudy.pdf|||Fri Jan 14 18:24:05 UTC 2022
dc.source.uri 10.1007/978-1-4615-2848-7_106
dc.subject.disciplines Acoustics, Dynamics, and Controls
dc.subject.disciplines Signal Processing
dc.title An experimental study of tomographic imaging in layered media
dc.type event
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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