Meng Xiangqian, Pan Xin, Liu Xingtao, Wang Xiufen, Zhuang Quanfeng, Li Hui, Chen Chao, Li Xianxin, Wang Zhangjun. Design and Experimental Verification of Polar Nephelometer Based on Imaging[J]. Chinese Journal of Lasers, 2018, 45(5): 510009
- Chinese Journal of Lasers
- Vol. 45, Issue 5, 510009 (2018)
Fig. 1. Design of polar nephelometer based on imaging
Fig. 2. Images captured by CCD at (a) grade 2, (b) grade 4, (c) grade 6, (d) grade 8, (e) grade 10, (f) grade 12,(g) grade 14, (h) grade 16, (i) grade 18, (j) grade 20, (k) grade 22 and (l) grade 24 light intensity of integrating sphere
Fig. 3. (a) Linear fitting curves between light intensity grade and grey scale of center point in the scatting image;(b) linear fitting curves between light intensity grade and grey level of scattering beam region
Fig. 4. Imaging of beam (dotted line) with a CCD
Fig. 5. Relationship between pixel position and the scale of standard ruler
Fig. 6. Relationship curve between pixel width and the scale of standard ruler
Fig. 7. Fitting relationship between pixel position and scattering angle
Fig. 8. Comparison between experimental nitrogen scattering phase function and Rayleigh scattering phase function
Fig. 9. Variation of scattering grey level with polarization angle at different scattering angles
Fig. 10. Linear fitting of measured grey level with the corresponding polarization angle sine squared value at scattering angle of 90°
Fig. 11. Variation of scattering intensity with polarization angle at scattering angle of 90°
Fig. 12. Comparison between measured values in water vapor scattering and scattering phase function calculated by Mie theory
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Table 1. Parameters of the electrical mirror mount
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Table 2. Linear fitting parameters of the photoelectric conversion at scattering beam region
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