New application of infrared CCD camera

Yasujiro Kiyota

doi:10.1117/12.280353

13 August 1997 New application of infrared CCD camera

Yasujiro Kiyota

Proceedings Volume 3061, Infrared Technology and Applications XXIII; (1997) https://doi.org/10.1117/12.280353
Event: AeroSense '97, 1997, Orlando, FL, United States

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.

Citation Download Citation

Yasujiro Kiyota "New application of infrared CCD camera", Proc. SPIE 3061, Infrared Technology and Applications XXIII, (13 August 1997); https://doi.org/10.1117/12.280353

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