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Spectroscopy and Spectral Analysis, Volume. 41, Issue 11, 3583(2021)

PSO-LSSVM Improves the Accuracy of LIBS Quantitative Analysis

Xiao-mei LIN1、*, Xiao-meng WANG1、1;, Yu-tao HUANG1、1; *;, and Jing-jun LIN2、2; *;
Author Affiliations
  • 11. Department of Electronics and Electrical Engineering, Changchun University of Technology, Changchun 130012, China
  • 22. Department of Mechanical and Electrical Engineering, Changchun University of Technology, Changchun 130012, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (11)
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    Figures & Tables(8)
    Schematic diagram of the experimental system

    Fig. 1. Schematic diagram of the experimental system

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    Characteristic line distributions of Pb and Cr

    Fig. 2. Characteristic line distributions of Pb and Cr

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    Pb element calibration model based on LSSVM

    Fig. 3. Pb element calibration model based on LSSVM

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    Cr element Calibration model based on LSSVM

    Fig. 4. Cr element Calibration model based on LSSVM

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    Pb element calibration model based on PSO-LSSVM

    Fig. 5. Pb element calibration model based on PSO-LSSVM

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    Cr element calibration model based on PSO-LSSVM

    Fig. 6. Cr element calibration model based on PSO-LSSVM

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    • Table 1. Certified concentration (Wt%) of Pb and Cr in the samples

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      Table 1. Certified concentration (Wt%) of Pb and Cr in the samples

      Sample numberConcentration of Pb and Cr/Wt%
      10.02
      20.05
      30.1
      40.2
      50.3
      60.4
      70.5
      80.6
      90.7
      100.8
      110.9
      121.0

    • Table 2. LSSVM and PSO-LSSVM data comparison

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      Table 2. LSSVM and PSO-LSSVM data comparison

      元素
      种类      		方法R2RMSEC
      /Wt%      		RMSEP
      /Wt%
      PbLSSVM0.922 30.026 00.101 8
      POS-LSSVM0.982 80.022 40.045 8
      CrLSSVM0.948 00.027 20.078 8
      POS-LSSVM0.985 00.019 10.042 0
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    Xiao-mei LIN, Xiao-meng WANG, Yu-tao HUANG, Jing-jun LIN. PSO-LSSVM Improves the Accuracy of LIBS Quantitative Analysis[J]. Spectroscopy and Spectral Analysis, 2021, 41(11): 3583

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    Paper Information

    Category: Orginal Article

    Received: Oct. 29, 2020

    Accepted: --

    Published Online: Dec. 17, 2021

    The Author Email: LIN Xiao-mei (linxiaomei@ccut.edu.cn)

    DOI:10.3964/j.issn.1000-0593(2021)11-3583-05

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology