Abstract
A set of moveable equipments was designed and applied to test the attenuation performance of aerosols to 10.6μm laser emission. The set includes a CY-40 CO 2 laser, an aerosol producer, a control device, a cooler, a power detector and an A/D card. The laser can produce not only pulse but 0.5W to 40W continuous laser emission. Moreover, the set can be used not only indoors but also outdoors to test the attenuation performance of various aerosols to 10.6μm laser emission within 50m distance. The principle and method to test the attenuation performance of aerosol with a strong concentration to 10.6μm laser emission in smoke chamber and outdoor field were expounded in detail. The formulas to calculate the transmittance and extinction coefficient of aerosol to laser emission were discussed with an example of oil fog smoke. From outdoor experiment, the average mass extinction of oil fog to 10.6μm laser emission is 0.127m 2 /g. Experimental results prove that the set of equipments may be widely applied to test and evaluate the transmitting performance of 10.6μm laser emission through different aerosols.
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