Abstract
A technique based on remote measurements of surface temperature in connection to fires is presented. Pulsed ultraviolet laser radiation at 266 nm and 7 ns duration was used to excite a thermographic phosphor, Mg4FGeO6: Mn, which was adapted on the surface of the investigated material. The laser-induced emission from the phosphor was recorded. A calibration of the phosphorescence lifetime and spectral properties against temperature allowed surface temperature measurements between 25°C and 500°C. The method was tested and compared with thermocouple measurements on burning materials such as lowdensity
fiberboards and polymethylmethan acrylate.
fiberboards and polymethylmethan acrylate.
Original language | English |
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Title of host publication | Proceedings of 7th IAFSS Symposium on Fire Safety Science |
Publisher | International Association for Fire Safety Science |
Pages | 141-152 |
Publication status | Published - 2002 |
Subject classification (UKÄ)
- Other Civil Engineering
- Atom and Molecular Physics and Optics
- Building Technologies