Wentao Wang, Wu Zhou, Xiaoshu Cai, Jinwei Qin, Yuhu Huang, Aijun Shi. Remote Measurement Method for Mass Concentration of Fugitive-Dust-Emission Particulate Based on Backward Light Scattering[J]. Acta Optica Sinica, 2019, 39(12): 1201001
- Acta Optica Sinica
- Vol. 39, Issue 12, 1201001 (2019)
Fig. 1. Principle of backward light scattering
Fig. 2. Image of scattered spot
Fig. 3. Flow chart of image processing
Fig. 4. Photograph of portable measuring device for fugitive-dust-emission particulate
Fig. 5. Typical image of backward light scattering of particulate
Fig. 6. Fitting curve of concentration and relative gray value
Fig. 7. Corrected gray value as a function of measuring distance
Fig. 8. Calibration curve of measuring distance
Fig. 9. Relative error of mass concentration of particulates as a function of distance resolution
Fig. 10. Particle size as a function of scattered light intensity
Fig. 11. Measurement results of mass concentration and relative error
Fig. 12. Collected images. (a) Image of scattered spot of fugitive-dust-emission particulate; (b) image of background
Fig. 13. Measurement results of mass concentration for fugitive dust emission
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