Title :
NDE application of ultrasonic reflection tomography
Author :
Lefebvre, J.-P. ; Recotillet, P. ; Lasaygues, P.
Abstract :
Application of ultrasonic reflection tomography (URT) to nondestructive evaluation (NDE) of materials is possible for flaw imagery: since flaws generally result in weak and localized signals, the inverse Born approximation, the basis of classical URT, can be used. It simply needs the knowledge of the Green function of the medium without flaws. This is calculated for stratified media. Application to NDE of coated plates is shown on a dedicated system
Keywords :
Green´s function methods; acoustic signal processing; acoustic tomography; flaw detection; ultrasonic materials testing; ultrasonic reflection; Green function; NDE; coated plates; flaw imagery; inverse Born approximation; localized signals; nondestructive evaluation; stratified media; ultrasonic reflection tomography; unhealthy interface; Acoustic reflection; Acoustic signal processing; Acoustic testing; Acoustic tomography; Flaw detection; Green´s functions; Nondestructive testing;
Conference_Titel :
Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE
Print_ISBN :
0-7803-2012-3
DOI :
10.1109/ULTSYM.1994.401819
