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dc.contributor.authorAtalar, Abdullahen_US
dc.contributor.authorKoymen H.en_US
dc.contributor.authorDegertekin F.L.en_US
dc.date.accessioned2016-02-08T10:55:19Z
dc.date.available2016-02-08T10:55:19Z
dc.date.issued1992en_US
dc.identifier.issn0885-3010
dc.identifier.urihttp://hdl.handle.net/11693/26121
dc.description.abstractIn a conventional scanning acoustic microscope the excited leaky modes contributes significantly to the high contrast obtained in the images. However, all such modes exist simultaneously, and the interpretation of the images is not straightforward, especially in layered media. A new lens geometry is proposed that can be used with acoustic microscopes to image layered solid structures. This new lens can focus the acoustic waves in only one of the Lamb wave modes of the layered solid with a high efficiency. V(Z) curves obtained from this lens are more sensitive to material properties compared to that obtained from conventional lens. Measuring the return signal as a function of frequency results in another characteristic curve, V(f). The Lamb wave lens and the associated characterization methods for the layered structures are described. The results presented show that the Lamb wave lens is at least an order of magnitude more sensitive than the conventional lens and can differentiate between a good bond and a disbond in a layered structure easily. © 1992 IEEEen_US
dc.language.isoEnglishen_US
dc.source.titleIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Controlen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/58.165548en_US
dc.subjectAcoustic imagingen_US
dc.subjectDesignen_US
dc.subjectFocusingen_US
dc.subjectLensesen_US
dc.subjectMicroscopic examinationen_US
dc.subjectAcoustic microscopyen_US
dc.subjectLamb wave lensen_US
dc.subjectMaterials characterizationen_US
dc.subjectRay acousticsen_US
dc.subjectAcoustic microscopesen_US
dc.titleA Lamb Wave Lens for Acoustic Microscopyen_US
dc.typeArticleen_US
dc.departmentDepartment of Electrical and Electronics Engineering
dc.citation.spage661en_US
dc.citation.epage667en_US
dc.citation.volumeNumber39en_US
dc.citation.issueNumber6en_US
dc.identifier.doi10.1109/58.165548en_US


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