Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

The design, construction and application of a large aperture lens-less line-focus PVDF transducer

Published

Author(s)

D Xiang, Gerald V. Blessing, Nelson N. Hsu

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

Keywords

material characterization, Ultrasonic transducer, Ultrasonics

Citation

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 28, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created December 31, 1995, Updated October 12, 2021