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Laser-induced Phosphorescence for Surface Thermometry in the Afterburner of an Aircraft Engine

Seyfried, Hans LU ; Richter, Mattias LU ; Aldén, Marcus LU and Schmidt, Håkan (2007) In AIAA Journal 45(12). p.2966-2971
Abstract
In the present work, surface thermometry using a method based on the spectroscopy of inorganic luminescent

material was applied in the afterburner of a full-size aircraft jet engine. The technique uses laser-induced emission

from thermographic phosphors for nonintrusive remote temperature diagnostics in combustion applications with

high sensitivity and accuracy. A phosphor material having suitable temperature sensitivity in the expected

temperature range was applied to the surface of interest in the engine afterburner. Phosphorescence radiation was

generated using the forth harmonic (266 nm) from a pulsed Nd:YAG laser. The resulting signal was detected with a

photomultiplier tube and... (More)
In the present work, surface thermometry using a method based on the spectroscopy of inorganic luminescent

material was applied in the afterburner of a full-size aircraft jet engine. The technique uses laser-induced emission

from thermographic phosphors for nonintrusive remote temperature diagnostics in combustion applications with

high sensitivity and accuracy. A phosphor material having suitable temperature sensitivity in the expected

temperature range was applied to the surface of interest in the engine afterburner. Phosphorescence radiation was

generated using the forth harmonic (266 nm) from a pulsed Nd:YAG laser. The resulting signal was detected with a

photomultiplier tube and phosphorescence lifetime decay curves were recorded for various engine loads, including

operation of the afterburner. By analyzing the phosphorescence decay, temperature data were acquired through

implementation of a regression equation extracted from well-defined calibration measurements on the phosphor

used. Quantitative temperature data recorded with a repetition rate of 10 Hz are presented. The laser-induced

phosphorescence technique for surface thermometry has proven its applicability in the extremely harsh environment

prevailing inside and next to a jet engine operating at full load. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
AIAA Journal
volume
45
issue
12
pages
2966 - 2971
publisher
American Institute of Aeronautics and Astronautics
external identifiers
  • WOS:000252845900015
  • Scopus:38049148048
ISSN
1533-385X
DOI
10.2514/1.30017
language
English
LU publication?
yes
id
666a2afe-4a28-4301-8f92-93aa582a1a9c (old id 760265)
date added to LUP
2007-12-17 14:23:27
date last changed
2016-10-13 04:59:20
@misc{666a2afe-4a28-4301-8f92-93aa582a1a9c,
  abstract     = {In the present work, surface thermometry using a method based on the spectroscopy of inorganic luminescent<br/><br>
material was applied in the afterburner of a full-size aircraft jet engine. The technique uses laser-induced emission<br/><br>
from thermographic phosphors for nonintrusive remote temperature diagnostics in combustion applications with<br/><br>
high sensitivity and accuracy. A phosphor material having suitable temperature sensitivity in the expected<br/><br>
temperature range was applied to the surface of interest in the engine afterburner. Phosphorescence radiation was<br/><br>
generated using the forth harmonic (266 nm) from a pulsed Nd:YAG laser. The resulting signal was detected with a<br/><br>
photomultiplier tube and phosphorescence lifetime decay curves were recorded for various engine loads, including<br/><br>
operation of the afterburner. By analyzing the phosphorescence decay, temperature data were acquired through<br/><br>
implementation of a regression equation extracted from well-defined calibration measurements on the phosphor<br/><br>
used. Quantitative temperature data recorded with a repetition rate of 10 Hz are presented. The laser-induced<br/><br>
phosphorescence technique for surface thermometry has proven its applicability in the extremely harsh environment<br/><br>
prevailing inside and next to a jet engine operating at full load.},
  author       = {Seyfried, Hans and Richter, Mattias and Aldén, Marcus and Schmidt, Håkan},
  issn         = {1533-385X},
  language     = {eng},
  number       = {12},
  pages        = {2966--2971},
  publisher    = {ARRAY(0x7cd1be0)},
  series       = {AIAA Journal},
  title        = {Laser-induced Phosphorescence for Surface Thermometry in the Afterburner of an Aircraft Engine},
  url          = {http://dx.doi.org/10.2514/1.30017},
  volume       = {45},
  year         = {2007},
}