Real-time gas-correlation imaging employing thermal background radiation

J Sandsten, Petter Weibring, Hans Edner, Sune Svanberg

Research output: Contribution to journalArticlepeer-review

57 Citations (SciVal)
290 Downloads (Pure)

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.
Original languageEnglish
Pages (from-to)92-103
JournalOptics Express
Volume6
Issue number4
DOIs
Publication statusPublished - 2000

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

Fingerprint

Dive into the research topics of 'Real-time gas-correlation imaging employing thermal background radiation'. Together they form a unique fingerprint.

Cite this