Mid infrared TDLAS (sulfur dioxide) SO2 ppm concentration analysis system 7.4um

TDLAS (Tunable Diode Laser Absorption Spectroscopy) is a new gas detection method developed by combining a diode laser with a long path absorption cell, which uses laser wavelength modulation to pass through the characteristic absorption region of the measured gas. The spectrum of the semiconductor laser source used in TDLAS technology has a width much smaller than the broadening of gas absorption lines, resulting in a single line absorption spectrum. Therefore, TDLAS technology is a high-resolution absorption spectroscopy technique. Sulfur dioxide is a common, simple, and irritating sulfur oxide with the chemical formula SO2. It is a colorless gas and one of the main pollutants in the atmosphere. Sulfur dioxide is a colorless and transparent gas with a pungent odor. Dissolve in water, ethanol, and ether.