| Issue |
J. Phys. IV France
Volume 04, Number C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique |
|
|---|---|---|
| Page(s) | C7-607 - C7-610 | |
| DOI | https://doi.org/10.1051/jp4:19947143 | |
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-607-C7-610
DOI: 10.1051/jp4:19947143
1 Laboratoire d'Instrumentation, ESPCI, 10 rue Vauquelin, 75005 Paris, France
2 Institute of Isotopes, Budapest, Hungary
3 Laboratoire d'Optique, ESPCI, UPR A0005 du CNRS, 10 rue Vauquelin, 75005 Paris, France
© EDP Sciences 1994
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-607-C7-610
DOI: 10.1051/jp4:19947143
Infrared differential imaging of vertical and slanted cracks : modelisations and experiments
J. Guitonny1, Z. Bozoki2, A.M. Mansanares3, M. Le Liboux3, D. Fournier1 and A.C. Boccara31 Laboratoire d'Instrumentation, ESPCI, 10 rue Vauquelin, 75005 Paris, France
2 Institute of Isotopes, Budapest, Hungary
3 Laboratoire d'Optique, ESPCI, UPR A0005 du CNRS, 10 rue Vauquelin, 75005 Paris, France
Abstract
A differential stimulated I.R. detection scheme is presented in order to obtain a better contrast in crack detection on real samples whose surface exhibits topographical and optical irregularities. A finite element simulation confirms the magnitude and shape of the signals for vertical and slanted cracks.
© EDP Sciences 1994