Method of measuring exhaust gas using multi-wavelength light extinction characteristic

摘要

The present invention relates to an exhaust gas measuring apparatus using multi-wavelength light extinction characteristics, and includes an irradiation unit, a tube, a vacuum pump, and a light measuring unit. The light irradiation unit irradiates light of different wavelengths. In the tube, exhaust gas is introduced from a duct through which exhaust gas flows, and light irradiated from the light irradiation portion passes through the tube. The vacuum pump forms a vacuum inside the tube so that the exhaust gas flows from the duct to the tube side. The light measuring unit measures light intensity by receiving light passing through the tube, which is irradiated by the light irradiating unit.