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Updated: May 16, 2025

O-cresol Concentration Online Measurement Based On Near Infrared Spectroscopy Via Partial Least Square Regression
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O-cresol Concentration Online Measurement Based On Near Infrared Spectroscopy Via Partial Least Square Regression

Published on: November 8, 2019

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开发一种基于近红外 (NIR) 光谱的混合综合水分含量测量方法

Guoqing Mu1, Fulin Zhang1, Wenjing Sun2

  • 1School of Information and Control Engineering, Qingdao University of Technology, Qingdao 266520, China. guoqingmu@qut.edu.cn.

Analytical methods : advancing methods and applications
|May 1, 2025
PubMed
概括

本研究介绍了一种混合软测量方法,使用近红外 (NIR) 光谱来实时监测液化床干燥 (FBD) 中的水分含量. 优化的模型显著提高了工业过程的预测准确性.

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When electromagnetic radiation passes through a material, atoms or molecules transition from a lower to a higher energy state by absorbing radiation corresponding to the energy difference between the two states. The absorption of infrared (IR) radiation causes transitions between vibrational energy levels in a molecule. Therefore, IR spectroscopy is a useful analytical tool for determining the molecular structure of molecules.
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IR Spectrum01:19

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When infrared (IR) radiation passes through a molecule, the bonds stretch or bend by absorbing the radiation. This absorption creates the molecule's absorption spectrum, which is the plot of its percentage transmittance versus wavenumber.
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