Publica
Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. Theoretical and experimental investigations of broadband thermoelastically generated ultrasonic pulses
| Hess, P.; Pelzl, J.:
Photoacoustic and Photothermal Phenomena 1987
Berlin/West: Springer, 1988
pp.284-287 |
| International Topical Meeting on Photoacoustic and Photothermal Phenomena <5, 1987, Heidelberg> |
|
| English |
| Conference Paper |
| Fraunhofer IZFP () |
| experiment; kurze Laserpulse; quantitatives theoretisches Modell; Thermoelastischer Effekt; Ultraschallerzeugung; Winkelcharakteristik; zeitlicher Signalverlauf |
Abstract
Broadband ultrasonic pulses can be remotely generated by short laser pulses at solid surfaces via the thermoelastic effect and by ablation of surface material. Such a technique might be a viable tool in nondestructive evaluation. This contribution firstly outlines the elements of a hitherto lacking three-dimensional theory of thermoelastic sound generation and secondly a comparison with experimental results is given.