Continuous-laser-based method for obtaining spherical particle spectrum complex refractive index and particle system particle size distribution

A technology of complex refractive index and particle size distribution, applied in the field of particle optical property measurement, can solve the problems of inability to directly measure measurement results, inaccuracy, etc., and achieve the effects of easy theoretical solution, high efficiency and sensitivity, and convenient purchase.
CN104634705AActive Publication Date: 2015-05-20HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2015-05-20

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Abstract

The invention relates to a continuous-laser-based method for obtaining spherical particle spectrum complex refractive index and particle system particle size distribution, belonging to the technical field of particle optical property measurement, and aiming at solving the problems that the conventional method for obtaining the spherical particle spectrum complex refractive index and the particle system particle size distribution can not be used for directly measuring and is not accurate in measuring results. According to the continuous-laser-based method, a model is solved by establishing forward problem and inverse problem of the measurement of a spherical particle system reflecting signal, a transmission signal and a collimating transmission signal, and the spherical particle spectrum complex refractive index and the particle system particle size distribution condition can be obtained by inversion. The method adopts the continuous laser, and a laser is low in price, simple in model and convenient in theory solution; the Mie theoretical model is adopted, so that the electromagnetic scattering property of particles can be accurately reflected; a quantum particle swarm optimization algorithm is adopted, so that the method has the advantages of being simple, efficient, high in sensitivity and the like. The method is suitable for measuring the particle optical properties.
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Description

technical field

[0001] The invention relates to a simultaneous inversion method of spherical particle spectrum complex refractive index and particle size distribution based on continuous laser technology, and belongs to the technical field of particle optical characteristic measurement. Background technique

[0002] Particle systems involve many fields such as metallurgy, power, construction, medicine, biology, aerospace, military and atmospheric science. The absorption, scattering and emission properties of particles play an important role in many engineering and environmental systems, so it is particularly important to solve the spectral complex refractive index of particles. The particle size distribution of the particle system is also one of its important parameters and technical indicators, which is closely related to the efficient use of energy and the prevention and control of environmental pollution.

[0003] The experimental research methods of particle optical pro...

Claims

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