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首页> 外文期刊>Applied optics >Mie light-scattering granulometer with an adaptive numerical filtering method. II. Experiments
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Mie light-scattering granulometer with an adaptive numerical filtering method. II. Experiments

机译：米氏光散射粒度仪采用自适应数值滤波方法。二。实验

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摘要

A nephelometer is presented that theoretically requires no absolute calibration. This instrument is used for determining the particle-size distribution of various scattering media (aerosols, fogs, rocket exhausts, engine plumes, and the like) from angular static light-scattering measurements. An inverse procedure is used, which consists of a least-squares method and a regularization scheme based on numerical filtering. To retrieve the distribution function one matches the experimental data with theoretical patterns derived from Mie theory. The main principles of the inverse method are briefly presented, and the nephelometer is then described with the associated partial calibration procedure. Finally, the whole granulometer system (inverse method and nephelometer) is validated by comparison of measurements of scattering media with calibrated monodisperse or known size distribution functions.
机译：提出了一种浊度计，理论上不需要绝对校准。该仪器用于根据角度静态光散射测量结果确定各种散射介质（气溶胶，雾气，火箭废气，发动机羽流等）的粒度分布。使用了一个逆过程，该过程由最小二乘法和基于数值滤波的正则化方案组成。为了检索分布函数，将实验数据与从Mie理论推导的理论模式进行匹配。简要介绍了反演方法的主要原理，然后通过相关的部分校准程序介绍了浊度计。最后，通过比较具有校准的单分散或已知粒度分布函数的散射介质的测量结果，验证了整个粒度仪系统（反向方法和浊度仪）。

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