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Surface temperature measurement of flame spread using thermographic phosphors

Omrane, Alaa LU ; Göransson, Ulf LU ; Ossler, Frederik LU ; Holmstedt, Göran LU and Aldén, Marcus LU (2002) In Proceedings of 7th IAFSS Symposium on Fire Safety Science p.141-152
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.
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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings of 7th IAFSS Symposium on Fire Safety Science
pages
141 - 152
publisher
IAFSS
language
English
LU publication?
yes
id
1933e33d-964a-4c69-a769-bf614d343ed5 (old id 769468)
date added to LUP
2007-12-19 13:41:53
date last changed
2016-04-16 10:14:57
@misc{1933e33d-964a-4c69-a769-bf614d343ed5,
  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<br/><br>
fiberboards and polymethylmethan acrylate.},
  author       = {Omrane, Alaa and Göransson, Ulf and Ossler, Frederik and Holmstedt, Göran and Aldén, Marcus},
  language     = {eng},
  pages        = {141--152},
  publisher    = {ARRAY(0x9d87120)},
  series       = {Proceedings of 7th IAFSS Symposium on Fire Safety Science},
  title        = {Surface temperature measurement of flame spread using thermographic phosphors},
  year         = {2002},
}