烟颗粒光散射Muller矩阵测量与尺寸、形状参数估计

he theories and processes for measuring the Muller matrices of light scattering of smoke particles were explained, the experimental setups were also showed. The method to determine the fractal dimension and radius of gyration from the Muller matrices of light scattering of the smoke particles were introduced, as the morphologies of most smoke particles have fractal structures, and the elements of the Muller matrices reflect those types of structures. The radius of gyration of the smoke particles from the smoldering cotton fire were measured with the Muller matrices method and the results shows that, the radius of the gyration of the smoke particles from the smoldering cotton changed from about 200nm to 300nm.