Anderson W L, Beissner R E
Appl Opt. 1971 Jul 1;10(7):1503-8. doi: 10.1364/AO.10.001503.
An approach to small particle counting and classification is proposed in which the size and shape distribution is determined from the far-field pattern of light scattered by the particles. By presuming that the scattering function for each particle species is known from auxiliary experiments or calculations, a general result applicable to irregular particles as well as simply shaped particles is obtained. Inversion formulas, by which the particle distribution is determined from the far-field data, are presented in forms suitable for digital or optical processing. An experimental approach to the design of a real-time optical counting and classifying instrument is suggested.
提出了一种小颗粒计数和分类方法，该方法根据颗粒散射光的远场模式确定尺寸和形状分布。通过假定每种颗粒类型的散射函数可从辅助实验或计算中得知，得出了适用于不规则颗粒以及形状简单颗粒的一般结果。给出了用于从远场数据确定颗粒分布的反演公式，其形式适用于数字或光学处理。还提出了一种用于设计实时光学计数和分类仪器的实验方法。
