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Proceedings Paper

New application of infrared CCD camera
Author(s): Yasujiro Kiyota
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Paper Abstract

In this paper, the new application of IRCCD camera is introduced. This application is to detect a presence and location of natural gas such as methane or propane gas. In order to detect the presence and location of the gas, an infrared light source and IRCCD camera are used. The natural gas has the special absorption within 3 to 5 micron. When the infrared light from background surroundings goes through the gas, its intensity is reduced by this gas absorption. If the intensity which goes through the gas is very weak, it is difficult to observe the difference. The performance without infrared light source was evaluated before. It was difficult to apply for normal environmental monitoring. Therefore, the infrared light source to increase an intensity from background surroundings was used. To increase the intensity, irradiation to the background surroundings from an observing site, then the reflected light from the background surroundings goes through the gas into the observing site. Therefore, the reflected light which is added to emitted light from the background can be observed. It can make the performance of detecting the gas higher.

Paper Details

Date Published: 13 August 1997
PDF: 10 pages
Proc. SPIE 3061, Infrared Technology and Applications XXIII, (13 August 1997); doi: 10.1117/12.280353
Show Author Affiliations
Yasujiro Kiyota, Nikon Corp. (Japan)


Published in SPIE Proceedings Vol. 3061:
Infrared Technology and Applications XXIII
Bjorn F. Andresen; Marija Strojnik, Editor(s)

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