Novel method for measuring absorption coefficient of atmospheric aerosol with light-heat method
An atmospheric aerosol and absorption coefficient technology, applied in the measurement of color/spectral characteristics, etc., to achieve the effect of convenient operation, direct and simple measurement principle, and improved measurement range and accuracy
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[0028] Such as figure 1 As shown, the new method for measuring the absorption coefficient of atmospheric aerosol by photo-thermal method comprises a glass tube 1, a vacuum zone 15 is arranged between the inner and outer walls of the glass tube 1, the glass tube 1 is surrounded by a vacuum insulation box, and the glass tube 1 is provided with The aerosol inlet 2, the outlet 3 and the light beam inlet 7, the aerosol inlet, the outlet 2, 3 are respectively located at the two ends of the glass tube 1 and are all perpendicular to the glass tube 1, the aerosol inlet 2 is provided with an air valve 4 and a filter 5, Aerosol outlet 3 is provided with air pump 6, and the two ends of described glass tube 1 are provided with two concave mirrors 7,8, and wherein light enters in the glass tube by 7 places; Beam entrance 7 is provided with laser 9 as light source, laser 9 and A collimator and a beam splitter 10 are arranged on the optical path between the beam entrances 7. The beam emitted ...
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