Xiang, D.
, Blessing, G.
and Hsu, N.
(1996),
The design, construction and application of a large aperture lens-less line-focus PVDF transducer, Ultrasonics
(Accessed May 14, 2025)
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The design, construction and application of a large aperture lens-less line-focus PVDF transducer
Published
Author(s)
D Xiang, ,
Abstract
A large aperture lens-less line-focus transducer for materials characterization is described. The transducer design is based on a time-domain Green?s function formalism, which also yields good theoretical corroboration of the experimental results. The transducer construction is readily achieved by conforming commercial polyvinylidene fluoride (PVDF) film to a cylindrical (convex) surface, followed by casting a tungsten-powder-loaded epoxy resin backing material into an attached housing. This transducer can be used to characterize sample material properties by simultaneously measuring surface wave speeds and bulk wave transit times, from which the thickness and anisotropy may be deduced.Citation
Ultrasonics
Volume
34
Pub Type
Journals
Keywords
material characterization, Ultrasonic transducer, Ultrasonics
Citation
Issues
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Created December 31, 1995, Updated October 12, 2021