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Proceedings Paper

Burst phase-angle thermography with elastic waves
Author(s): Alexander Dillenz; Thomas Zweschper; Gerhard Busse
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Paper Abstract

Defect selective non-destructive testing methods are increasingly being used for safety relevant applications in aerospace and related fields. The main advantage is the clarity in interpretation of such methods: defects are revealed while non- relevant structural information is suppressed. One way to achieve defect selectivity is the combination of mechanical load to generate heat inside a sample and thermography to detect the resulting thermal waves. Ultrasound Lock-in thermography is one example of an established defect selective testing method described previously. In this paper, several kinds of excitation sources and modulation shapes are discussed.

Paper Details

Date Published: 15 March 2002
PDF: 6 pages
Proc. SPIE 4710, Thermosense XXIV, (15 March 2002); doi: 10.1117/12.459609
Show Author Affiliations
Alexander Dillenz, Univ. Stuttgart (Germany)
Thomas Zweschper, Univ. Stuttgart (Germany)
Gerhard Busse, Univ. Stuttgart (Germany)

Published in SPIE Proceedings Vol. 4710:
Thermosense XXIV
Xavier P. Maldague; Andres E. Rozlosnik, Editor(s)

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