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Proceedings Paper

Design of fiber PM2.5 and PM10 concentration detectors based on MIE scattering
Author(s): Yun Li; Jianfeng Tang
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Paper Abstract

PM2.5 and PM10 are important indexes reflecting air quality. Based on the MIE angular scattering principle, a PM2.5 and PM10 detector arraywasdesigned,which was miniaturized and all fiber structures. Theoretical deduction and Matlab program simulation were given to illustrate the basic principle of the system. The influence of system parameters on measurement accuracywere discussed, such aslaser wavelength, scattering angle and receiving range parameters. Using optical fiber spherical end face instead of discrete lens group, miniaturization of probe structure was realized. The introduction of frequency modulated continuous wave (FMCW) technology, realization of multi-element frequency division multiplexing. At the same time, the influence of stray light is eliminated and the signal to noise ratio is improved effectively. The system can simultaneously measure the concentration of PM2.5 and PM10 at multiple locations.

Paper Details

Date Published: 12 March 2020
PDF: 7 pages
Proc. SPIE 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 114370M (12 March 2020); doi: 10.1117/12.2549850
Show Author Affiliations
Yun Li, Hunan GreatWall Hidden Optical Fiber Technology Co., Ltd. (China)
Jianfeng Tang, Hunan GreatWall Hidden Optical Fiber Technology Co., Ltd. (China)


Published in SPIE Proceedings Vol. 11437:
2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Zhiyi Wei; Chunqing Gao; Pu Wang; Franz X, Kärtner; Stefan A. Weber, Editor(s)

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