Surface temperature measurement of flame spread using thermographic phosphors
Författare
Summary, in English
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.
Avdelning/ar
Publiceringsår
2002
Språk
Engelska
Sidor
141-152
Publikation/Tidskrift/Serie
Proceedings of 7th IAFSS Symposium on Fire Safety Science
Dokumenttyp
Konferensbidrag
Förlag
International association for fire safety science
Ämne
- Other Civil Engineering
- Atom and Molecular Physics and Optics
- Building Technologies
Status
Published