Particle granularity measuring equipment based on Mie scattering theory

Abstract

The invention discloses Particle granularity measuring equipment based on a Mie scattering theory, which particularly relates to the field of particle granularity measurement methods. The equipment comprises a parallel light generation module, a sample dispersion module, a light scattering acquisition module, an electric control two-dimensional guide table and a data processing module, wherein theparallel light generation module, the sample dispersion module and the light scattering acquisition module are distributed in a line from left to right. The area array CCD is used as a receiving device, anAiry disk image is obtained, the position information is extracted, image guide centering is realized, a centering correction parameter is solved, and the accuracy of a measurement result is improved; the position of the area array CCD is controlled by designing a two-dimensional guide table,a plurality of images at different positions are shot, an image splicing technology is utilized, a large-angle light scattering energy diagram is collected, an image processing method is utilized, scattering angles are dynamically divided, the resolution of granularity measurement is improved, a neural network principle is utilized, a traditional inversion algorithm is improved, and the accuracy, speed and reliability of the algorithm are improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of particle size measurement methods, in particular to a particle size measurement device based on Mie's scattering theory. Background technique [0002] Particles are particles with a specific geometric shape ranging from millimeters to nanometers, such as powdery substances that are often seen in daily life, fog droplets in the air and bubbles in water, all of which can be called particles. Usually, we define the particle size as the particle size of the particle. In the particle population, the percentage of particles of different sizes in the total particle population is defined as the particle size distribution. [0003] In the material industry, many solid products exist in powder state. The size and distribution of particle size are important parameters to determine the characteristics of powder. For example, the setting time and final strength of cement have a great relationship with t...

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Problems solved by technology

[0011] For this reason, the embodiment of the present invention provides a particle size measurement device based on Mie's scattering theory, aiming to solve the problems in the prior art due to the relatively low test range, measurement accuracy, measurement repeatability, instrument resolution and reliability of domestic particle size analyzers. weak question

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