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Laser & Optoelectronics Progress, Volume. 56, Issue 24, 240104(2019)

Design and Implementation of Visibility Measurement System Based on Integrating Sphere Light Source

Kai Ye1,2, Ling Yang1,2、*, Xiaoqiong Zhen1,2, and Qinzheng Hao1,2
Author Affiliations
  • 1College of Electronic Engineering, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China
  • 2CMA Key Laboratory of Atmospheric Sounding, Chengdu, Sichuan 610225, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (14)
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    References (26)
    Cited By (3)
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    Figures & Tables(14)
    Integral sphere light source design

    Fig. 1. Integral sphere light source design

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    Light source and light path design

    Fig. 2. Light source and light path design

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    Top view of light source and light path

    Fig. 3. Top view of light source and light path

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    Schematic of the system

    Fig. 4. Schematic of the system

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    Data processing flow chart

    Fig. 5. Data processing flow chart

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    Light spots. (a) Light spot taken from the integrating sphere light source; (b) light spot taken from the LED light source

    Fig. 6. Light spots. (a) Light spot taken from the integrating sphere light source; (b) light spot taken from the LED light source

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    Light spot segmentation

    Fig. 7. Light spot segmentation

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    Light spot boundary points

    Fig. 8. Light spot boundary points

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    Relationship between grid length and uniformity error

    Fig. 9. Relationship between grid length and uniformity error

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    Comparison of different visibility distances. (a) Low visibility; (b) medium visibility; (c) high visibility

    Fig. 10. Comparison of different visibility distances. (a) Low visibility; (b) medium visibility; (c) high visibility

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    Visibility comparison of different weather phenomena. (a) Rain; (b) fog

    Fig. 11. Visibility comparison of different weather phenomena. (a) Rain; (b) fog

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    Visibility comparison of different light sources. (a) LED; (b) integrating sphere

    Fig. 12. Visibility comparison of different light sources. (a) LED; (b) integrating sphere

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    • Table 1. Comparison of different visibility distances

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      Table 1. Comparison of different visibility distances

      Visibilityσsrd /%Asrd /%r
      Low visibility7.52.40.94
      Medium visibility8.04.50.97
      High visibility9.56.60.77

    • Table 2. Visibility comparison of different weather phenomena

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      Table 2. Visibility comparison of different weather phenomena

      Weatherσsrd /%Asrd /%r
      Rain11.434.690.95
      Fog8.972.090.99
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    Kai Ye, Ling Yang, Xiaoqiong Zhen, Qinzheng Hao. Design and Implementation of Visibility Measurement System Based on Integrating Sphere Light Source[J]. Laser & Optoelectronics Progress, 2019, 56(24): 240104

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    Paper Information

    Category: Atmospheric Optics and Oceanic Optics

    Received: May. 5, 2019

    Accepted: Jun. 24, 2019

    Published Online: Nov. 26, 2019

    The Author Email: Ling Yang (cimyang@cuit.edu.cn)

    DOI:10.3788/LOP56.240104

    Topics

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