Estimation of Grain Size in Randomly Packed Granular Material Using Laser-Induced Breakdown Spectroscopy
نویسندگان
چکیده
Grain size is one of the most important physical parameters for randomly packed granular (RPG) materials. Its estimation, especially in situ, plays a key role many natural and industrial processes. Here, application laser-induced breakdown spectroscopy (LIBS) was investigated experimentally to estimate grain RPG The experiment performed by taking sieved copper microspheres with discrete median diameters ranging from 53 357 ?m as examples measuring plasma emissions induced 1064 nm laser pulses duration 7 ns an air environment. It found that emission measurements were successful estimating diameter via monitoring variations temperature (electron density) at range below (above) critical value. In addition, it demonstrated that, when serves indicator size, intensity ratio between two spectral lines different upper energy levels same emitting species can be used alternative higher sensitivity. results show potential using LIBS situ estimation materials first time.
منابع مشابه
Laser Induced Breakdown Spectroscopy
Laser-induced breakdown spectroscopy (LIBS) is a powerful analytical technique that can be used for the detection and characterization of materials. In LIBS, a focused laser beam is used to generate a plasma plume on the surface of solid and liquid samples or inside the sample volume of gases, liquids, and aerosols. Each excited atom in the plasma emits a unique set of spectral lines, particula...
متن کاملLaser Induced Breakdown Spectroscopy
Esta revisão descreve os aspectos fundamentais, a instrumentação, as aplicações e tendências futuras de uma técnica analítica que se encontra em seu estágio de consolidação e que está em vias de estabelecer o seu nicho entre as técnicas espectrofotométricas modernas. A técnica é denominada Espectroscopia de Emissão em Plasma Induzido por Laser (em inglês, Laser Induced Breakdown Spectroscopy, L...
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ژورنال
عنوان ژورنال: Chemosensors
سال: 2022
ISSN: ['2227-9040']
DOI: https://doi.org/10.3390/chemosensors10040144