Surface temperature measurement of flame spread using thermographic phosphors

Alaa Omrane, Ulf Göransson, Frederik Ossler, Göran Holmstedt, Marcus Aldén

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

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.
Original languageEnglish
Title of host publicationProceedings of 7th IAFSS Symposium on Fire Safety Science
PublisherInternational Association for Fire Safety Science
Pages141-152
Publication statusPublished - 2002

Subject classification (UKÄ)

  • Other Civil Engineering
  • Atom and Molecular Physics and Optics
  • Building Technologies

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