Chin-Shifrin变换反演算法在煤粉颗粒粒径在线测量中的应用研究

doi:10.16039/j.cnki.cn22-1249.2022.07.010

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摘要

研究了颗粒的光散射现象，提出用于煤粉颗粒粒径测量的Chin-Shifrin变换反演算法。该算法采用线阵CCD为光电探测器，基于Fraunhofer衍射原理对小粒径颗粒的散射光强进行反演计算。在分析算法原理的基础上，给出了反演计算相应积分角度区间的计算公式。通过数值模拟，用Chin-Shifrin变换反演平均粒径为90um煤粉颗粒，仿真结果表明，粒度分布测量的相对误差小于4%。

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	晏玉娇
	孙明革

关键词: 煤粉颗粒粒径测量衍射变换线阵CCD

Abstract:

The light scattering phenomenon of particles is studied, and a Chin-Shifrin transform inversion algorithm for particle size measurement of pulverized coal is proposed. The algorithm uses a linear array CCD as the photodetector, and calculates the scattered light intensity of small-sized particles based on the Fraunhofer diffraction principle. On the basis of analyzing the principle of the algorithm, the calculation formula of the corresponding integral angle interval for inversion is given. Through numerical simulation, the Chin-Shifrin transformation is used to invert the average particle size of 90um pulverized coal particles. The simulation results show that the relative error of particle size distribution measurement is less than 4%.

Key words: pulverized coal particles particle size measurement diffraction transformation linear CCD

出版日期: 2022-07-25 发布日期: 2022-07-25 整期出版日期: 2022-07-25

ZTFLH:

O433.1

引用本文:

晏玉娇, 孙明革. Chin-Shifrin变换反演算法在煤粉颗粒粒径在线测量中的应用研究 [J]. 吉林化工学院学报, 2022, 39(7): 54-57.
YAN Yujiao, SUN Mingge. Research on the Application of Chin-Shifrin Transform Inversion Algorithm in on-line Measurement of Coal Particle Size . Journal of Jilin Institute of Chemical Technology, 2022, 39(7): 54-57.

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http://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2022.07.010 或 http://xuebao.jlict.edu.cn/CN/Y2022/V39/I7/54

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