| Numéro |
J. Phys. IV France
Volume 04, Numéro C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique |
|
|---|---|---|
| Page(s) | C7-587 - C7-590 | |
| DOI | https://doi.org/10.1051/jp4:19947138 | |
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-587-C7-590
DOI: 10.1051/jp4:19947138
1 Department of Physics, University of Helsinki, P.O. Box 9, 00014 Helsinki, Finland
2 Finnish Naval Headquarters, P.O. Box 105, 00201 Helsinki, Finland
© EDP Sciences 1994
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-587-C7-590
DOI: 10.1051/jp4:19947138
Performance of a line-scanning thermal nondestructive evaluation system applied to low-diffusivity materials
R. Lehtiniemi1, J. Rantala1, J. Hartikainen2, J. Varis1 and M. Luukkala11 Department of Physics, University of Helsinki, P.O. Box 9, 00014 Helsinki, Finland
2 Finnish Naval Headquarters, P.O. Box 105, 00201 Helsinki, Finland
Abstract
Performance of a thermal line scanning nondestructive evaluation system for low-diffusivity materials was studied using PVC samples having flat bottom holes. The measurements were also simulated numerically, and these results were compared with the experimental results. Multiple scans over the damaged area were found to significantly improve the contrast in thermal images.
© EDP Sciences 1994