Zhibo Liu, Zhipeng Zhu, Chao He, Jia Li, Xiangji Yue, Dechun Ba, Fei Zhao. Research on Quantitative Relationship Between Image Gray Value and Particle Diameter of Micro-Nano-Scale Tracer Particle[J]. Acta Optica Sinica, 2020, 40(8): 0811004
- Acta Optica Sinica
- Vol. 40, Issue 8, 0811004 (2020)
Fig. 1. Analysis flowchart of relationship between particle diameter and gray value
Fig. 2. Imaging process for CCD
Fig. 3. Experimental system of PTV gas-solid two-phase flow
Fig. 4. Morphology of particle image
Fig. 5. Partial image of SiO2 particle taken in experiment
Fig. 6. Actual diameter distribution of SiO2 particle samples
Fig. 7. Calculation result of particle diameter
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