Burst phase-angle thermography with elastic waves

Alexander Dillenz; Thomas Zweschper; Gerhard Busse

doi:10.1117/12.459609

15 March 2002 Burst phase-angle thermography with elastic waves

Alexander Dillenz, Thomas Zweschper, Gerhard Busse

Proceedings Volume 4710, Thermosense XXIV; (2002) https://doi.org/10.1117/12.459609
Event: AeroSense 2002, 2002, Orlando, FL, United States

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.

Citation Download Citation

Alexander Dillenz, Thomas Zweschper, and Gerhard Busse "Burst phase-angle thermography with elastic waves", Proc. SPIE 4710, Thermosense XXIV, (15 March 2002); https://doi.org/10.1117/12.459609

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