Journal of Applied Optics, Volume. 45, Issue 4, 768(2024)

Experimental study of scattering angle for large-scale turbidity measurement

Li ZHEN... Naiyi GE, Haitao ZHANG, Yelong ZHENG, Meirong ZHAO and Yinguo HUANG* |Show fewer author(s)
Author Affiliations
  • State Key Laboratory of Precision Measurement Technology and Instruments, Tianjin University, Tianjin 300072, China
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    Figures & Tables(11)
    Schematic diagram of scattering phase function
    Schematic diagram of experiment
    Physical drawing of measuring device
    Schematic diagram of system integral design
    Experimental results of multi-angle scattering
    Segmentation fitting results of 135° scattering curves
    Measurement fitting results after reducing 135° scattered path
    • Table 1. Experimental standard solution and scattering angles

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      Table 1. Experimental standard solution and scattering angles

      标准液浊度/NTU0100150250500800
      散射角度θ/(°)01125456075
      标准液浊度/NTU10001250150018002000
      散射角度θ/(°)90105120135145
    • Table 2. Minimum fitting order with fitting error less than 5%

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      Table 2. Minimum fitting order with fitting error less than 5%

      散射角度θ/(°)拟合所需最小阶数最大误差/%
      4564.65
      6044.97
      7534.53
      9024.35
      10523.35
      12023.19
      13514.22
      14534.33
    • Table 3. Segmentation fitting of 135° scattering light signal

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      Table 3. Segmentation fitting of 135° scattering light signal

      浊度/NTU斜率R2
      100~2 0000.517 20.97
      100~8000.753 20.99
      800~1 5000.505 60.98
      1 500~2 0000.342 60.99
    • Table 4. Segmentation fitting after reducing 135° scattered path

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      Table 4. Segmentation fitting after reducing 135° scattered path

      浊度/NTU斜率R2
      100~2 0000.683 50.97
      100~8001.013 30.98
      800~1 5000.573 20.99
      1 500~2 0000.526 40.98
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    Li ZHEN, Naiyi GE, Haitao ZHANG, Yelong ZHENG, Meirong ZHAO, Yinguo HUANG. Experimental study of scattering angle for large-scale turbidity measurement[J]. Journal of Applied Optics, 2024, 45(4): 768

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    Paper Information

    Category: Research Articles

    Received: Aug. 7, 2023

    Accepted: --

    Published Online: Oct. 21, 2024

    The Author Email: HUANG Yinguo (黄银国)

    DOI:10.5768/JAO202445.0403001

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