[14a-K304-1~11] 3.7 Optical measurement, instrumentation, and sensor

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[14a-K304-7] Quantification of CO₂ gas emission based on a narrow-band infrared camera

〇Hideki T. Miyazaki¹, Takeshi Kasaya¹, Kazuya Kimoto¹, Yutaro Tsuiki¹, Keidai Toyoshima^1,2, Masahiro Saito¹, Tetsuyuki Ochiai¹ (1.NIMS, 2.Univ. Tokyo)

Keywords:

carbon dioxide,optical gas imaging,infrared camera

By integrating a cold narrow-band filter adjusted to an absorption wavelength (4.26 µm) of carbon dioxide (CO₂) into an infrared camera, CO₂ can be optically visualized with high contrast. We applied a continuity equation to a region enclosing the source of the CO₂ emission and successfully quantified the CO₂ gas emission without the influence of the originally contained CO₂ in the atmosphere, irrespective of the gas temperature.