Du Chen, Bingyi Liu, Qian Yang, Junwu Tang, Songhua Wu. Measurement of volume scattering function of suspended particles in water approaching to 180°[J]. Infrared and Laser Engineering, 2021, 50(6): 20211029
- Infrared and Laser Engineering
- Vol. 50, Issue 6, 20211029 (2021)
![Geometry for defining the volume scattering function[2]](/richHtml/irla/2021/50/6/20211029/img_1.jpg)
Fig. 1. Geometry for defining the volume scattering function[2]
Fig. 2. Schematic diagram of scattering by a sphere
Fig. 3. Schematic diagram (a) and physical model (b) of the system for measuring volume scattering function of water approaching to 180°
Fig. 4. Sectional view of off-axis parabolic mirror
Fig. 5. Correspondence between CMOS camera pixel coordinates and particle scattering angle of measurement system
Fig. 6. Minimum normalized scattering phase function of Submicron (a) and Micron (b) polystyrene standard particles
Fig. 7. Measured value and theoretical value of volume scattering function of 1 μm (a) and 10 μm (b) size standard particle (azimuth Φ =90°)
Fig. 8. Measured value and theoretical value of volume scattering function of 1 μm (a) and 10 μm (b) size standard particle (azimuth Φ =0°)
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Table 1. Specification of polystyrene standard particles used in this paper
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Table 2. Scattering coefficient of polystyrene standard particle suspension solution with different concentrations
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