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Real-time gas-correlation imaging employing thermal background radiation

Sandsten, J; Weibring, Petter LU ; Edner, Hans LU and Svanberg, Sune LU (2000) In Optics Express 6(4). p.92-103
Abstract
Real-time imaging of gas leaks was demonstrated using an IR camera employing outdoor thermal background radiation. Ammonia, ethylene and methane detection was demonstrated in the spectral region 7-13 mu m. Imaging was accomplished using an optical filter and a gas-correlation cell matching the absorption band of the gas. When two gases, such as ammonia and ethylene, are absorbing in the same wavelength region it is possible to isolate one for display by using gas-correlation multispectral imaging. Results from a field test on a leaking gas tanker are presented as QuickTime movies. A detection limit of 200 ppm x meter for ammonia was accomplished in this setup when the temperature difference between the background and the gas was 18 K and... (More)
Real-time imaging of gas leaks was demonstrated using an IR camera employing outdoor thermal background radiation. Ammonia, ethylene and methane detection was demonstrated in the spectral region 7-13 mu m. Imaging was accomplished using an optical filter and a gas-correlation cell matching the absorption band of the gas. When two gases, such as ammonia and ethylene, are absorbing in the same wavelength region it is possible to isolate one for display by using gas-correlation multispectral imaging. Results from a field test on a leaking gas tanker are presented as QuickTime movies. A detection limit of 200 ppm x meter for ammonia was accomplished in this setup when the temperature difference between the background and the gas was 18 K and the frame rate was 15 Hz. (C) 2000 Optical Society of America. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
6
issue
4
pages
92 - 103
publisher
OSA
external identifiers
  • scopus:0002950230
ISSN
1094-4087
DOI
10.1364/OE.6.000092
language
English
LU publication?
yes
id
27ebcfec-0d01-4f51-8044-3b1e128d654c (old id 2259274)
date added to LUP
2012-02-10 00:49:38
date last changed
2017-05-21 04:37:00
@article{27ebcfec-0d01-4f51-8044-3b1e128d654c,
  abstract     = {Real-time imaging of gas leaks was demonstrated using an IR camera employing outdoor thermal background radiation. Ammonia, ethylene and methane detection was demonstrated in the spectral region 7-13 mu m. Imaging was accomplished using an optical filter and a gas-correlation cell matching the absorption band of the gas. When two gases, such as ammonia and ethylene, are absorbing in the same wavelength region it is possible to isolate one for display by using gas-correlation multispectral imaging. Results from a field test on a leaking gas tanker are presented as QuickTime movies. A detection limit of 200 ppm x meter for ammonia was accomplished in this setup when the temperature difference between the background and the gas was 18 K and the frame rate was 15 Hz. (C) 2000 Optical Society of America.},
  author       = {Sandsten, J and Weibring, Petter and Edner, Hans and Svanberg, Sune},
  issn         = {1094-4087},
  language     = {eng},
  number       = {4},
  pages        = {92--103},
  publisher    = {OSA},
  series       = {Optics Express},
  title        = {Real-time gas-correlation imaging employing thermal background radiation},
  url          = {http://dx.doi.org/10.1364/OE.6.000092},
  volume       = {6},
  year         = {2000},
}