【摘要】 用消光法 (L ight extinction)可以测量颗粒的平均粒径 ,而用多波长消光法 ,不仅可以测量颗粒的平均粒径 ,而且也可以测量颗粒的粒径分布。本文提出 ,当采用函数限制解法时 ,仅用 3个波长即可求出颗粒的粒径及其粒径分布 ,计算机数值模拟计算和实测结果证实了这种方法的有效性更多还原

【Abstract】 This paper describes a method to determine size distribution of small particles using three wavelengths extinction.A number of computer numerical calculations and experiments demonstrate that the method presented here is valid for size distribution of small particles.The precision and measurement rang of particle size is identical with the method of multiple wavelengths extinction..更多还原