Tongtong Mu, Jin Shen, Xinqiang Li, Mengjie Wang, Yajing Wang, Wei Liu, Xi Yuan, Xiaohu Chen, Xinjun Zhu. Velocity Limitation in Dynamic Light Scattering Measurement for Flowing Aerosols[J]. Acta Optica Sinica, 2021, 41(14): 1429001
- Acta Optica Sinica
- Vol. 41, Issue 14, 1429001 (2021)
Fig. 1. PSD inversion results of 223 nm unimodal aerosol under different noise levels. (a) 0; (b) 10－5; (c) 10－3
Fig. 2. PSD inversion results of 687 nm unimodal aerosol under different noise levels. (a) 0; (b) 10－5; (c) 10－3
Fig. 3. PSD inversion results of 152/734 nm bimodal aerosol under different noise levels. (a) 0; (b) 10－5; (c) 10－3
Fig. 4. Experimental device for aerosol measurement
Fig. 5. Experimental results. (a) Intensity ACF and (b) inversion results of aerosol at different flow velocities
Fig. 6. Condition number of kernel matrix corresponding to 687 nm aerosol at different flow velocities
Fig. 7. PSI distributions of a 687 nm unimodal aerosol in corresponding ACF at different flow velocities
Fig. 8. Simulated ACF of unimodal aerosols with different particle sizes at flow velocity of 2.1 m/s. (a) 223 nm; (b) 458 nm; (c) 687 nm
Fig. 9. Relationship among aerosol particle size, flow velocity，and diffusion translation characteristic time ratio
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Table 1. Parameters and properties of the simulated PSDs
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Table 2. Performance indices of the recovery of unimodal aerosol
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Table 3. Performance indices of 152/734 nm bimodal aerosol inversion results
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Table 4. Performance indices of aerosol inversion at different flow velocities
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