水蒸気可視化のための近赤外照明システムの改良

抄録

Rigorous humidity control is required in some industrial and research fields because water vapor in the air affects the quality, hygiene, and stable operation of industrial products, foodstuff, and others. In order to identify the source of water vapor and evaluate its inflow and outflow, we have developed a near-infrared imaging system that can determine the temporal and spatial variations of water vapor in an open space. To improve the quality or concentration resolution of water vapor, the wavelength selection and the condition of illumination light are important. Thus, we modified an illumination system in the imaging system and uses two wavelengths for water vapor imaging.