Title :
Pulse-echo scattering in solids with nonuniform transducers
Author :
Stacey, R. ; Weight, J.P.
Author_Institution :
Sch. of Eng., City Univ., London, UK
fDate :
9/1/1994 12:00:00 AM
Abstract :
The advantages of making pulse-echo measurements in solids with nonuniform transducers are analysed using an extension of earlier finite difference methods. It is shown in particular that a `plane wave only´ transducer leads to much simpler and more easily interpreted echo signals than a conventional uniform or piston transducer. This result is confirmed by a direct comparison with experimental measurements from known defects
Keywords :
echo; finite difference methods; ultrasonic materials testing; ultrasonic scattering; ultrasonic transducers; US NDT; direct comparison; echo signals; finite difference methods; isotropic elastic solids; nondestructive testing; nonuniform transducers; plane wave only transducer; pulse echo measurement; pulse-echo scattering;
Journal_Title :
Science, Measurement and Technology, IEE Proceedings -
DOI :
10.1049/ip-smt:19949932
