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Particle refraction index measuring method, computer device and computer-readable storage medium

A measurement method and technology of refractive index, which is applied in the field of calculation of the refractive index of particles, can solve problems such as errors in refractive index and particle size measurement results, and achieve the effect of improving relative refractive index data

Active Publication Date: 2018-11-23
LINKOPTIK INSTR CO LTD
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Problems solved by technology

The error of the refractive index will lead to the error of the particle size measurement result of the sample

Method used

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  • Particle refraction index measuring method, computer device and computer-readable storage medium
  • Particle refraction index measuring method, computer device and computer-readable storage medium
  • Particle refraction index measuring method, computer device and computer-readable storage medium

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Embodiment Construction

[0048] The particle refractive index measurement method of the present invention mainly uses a laser particle size analyzer to measure the scattered light energy distribution data of the tested sample, and calculates the refractive index data of the particles in the tested sample through a computer device. The computer device of the present invention has a processor and a memory, and the memory stores a computer-readable storage medium. The computer-readable storage medium can be various storage media with a data storage function, including but not limited to non-volatile devices such as FLASH and EEPROM. memory. When the processor executes the computer program, the above-mentioned method for measuring the refractive index of particles can be realized.

[0049] Example of particle refractive index measurement method:

[0050] This embodiment mainly utilizes the scattered light distribution data (E 1 ,E 2 ,...,E u ) to calculate the refractive index of the particle to be me...

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Abstract

The invention discloses a particle refraction index measuring method, a computer device and a computer-readable storage medium. The method comprises the following steps: acquiring actually-measured scattering light energy data measured by a laser particle size analyzer of samples to be measured, acquiring main peak data in the actually-measured scattering light energy data, and calculating particle size distribution data of particles in the samples to be measured by using the main peak data; calculating fitted scattering light energy data of the particles under two or more relative refractionindexes when the particle size distribution of the particles meets particle size distribution data; calculating actually-measured normalization scattering light energy data and fitted normalization scattering light energy data, and calculating variance between the actually-measured normalization scattering light energy data and the fitted normalization scattering light energy data; calculating a value of a target relative refractive index when the variance between the actually-measured normalization scattering light energy data and the fitted normalization scattering light energy data is minimum through iteration; and calculating the refractive indexes of the samples to be measured by using values of refractive indexes of media and the target relative refractive index. The invention also provides the computer device and the computer-readable storage medium for implementing the method. The method is capable of conveniently calculating the refractive indexes of the particles by using thedata of the laser particle size analyzer.

Description

technical field [0001] The invention relates to the field of calculating the refractive index of particles, in particular to a method for measuring the refractive index of particles based on laser scattering theory, a computer device for realizing the method, and a computer-readable storage medium. Background technique [0002] Laser particle size analyzers have been widely used in the measurement of particle size distribution of powders, liquid sprays, emulsions, etc. Usually, particle size distribution is also called "particle size distribution", which uses the scattering phenomenon of light, that is, light waves irradiate different When particles of different sizes are on the surface, the light field scattered by the particles has a different spatial distribution phenomenon. The measurement of particle size distribution uses this phenomenon to measure the distribution of particles of different particle sizes. For example, the Chinese invention patent application with publ...

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Application Information

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IPC IPC(8): G01N21/41
CPCG01N21/41G01N2021/4113
Inventor 张福根潘林超
Owner LINKOPTIK INSTR CO LTD
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