Near infrared TDLAS C2H2 (acetylene) ppb level concentration analysis system 1520nm

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. Acetylene: C2H2, commonly known as wind coal or carbide gas, is the smallest volume member of alkyne compounds, mainly used for industrial purposes, especially in the field of welding metals. Acetylene is a colorless and highly flammable gas at room temperature. Pure acetylene is odorless, but industrial acetylene has a garlic odor due to impurities such as hydrogen sulfide and phosphine.