Chinese Journal of Lasers, Volume. 45, Issue 9, 911009(2018)
Differential Absorption Lidar System for Background Atmospheric SO2 and NO2 Measurements
Figures & Tables(7)
Fig. 2. (a) Concentration profiles of SO2 and (b) its mean profiles measured by SO2/NO2 DIAL
Fig. 3. (a) Concentration profiles of NO2 and (b) its mean profiles measured by SO2/NO2 DIAL
Fig. 6. Relationship between integration time and its mean standard deviation in (a) SO2 and (b) NO2 DIAL measurements
Table 1. Specification of SO2/NO2 DIAL system
View tableTable 1. Specification of SO2/NO2 DIAL system
Unit Specification Parameter Laser Nd∶YAG laser energy /mJ 400(at 532 nm) 100(at 355 nm) Dye laser energy /mJ 95.2(at 600 nm) 10(at 448 nm) Second harmonic generation crystal BBO (SO2) Type I θ =38.6°,Φ =30°Optical Telescope diameter /mm 350 Receiver Focal length /mm, field of view /mrad 750,0.2~2 Fiber Diameter /mm, NA , transmission /%1.2,0.22,99.9 Filter Aperture /mm, continuous wave /nm 25.4/300.75 25.4/447.45 Full width at half-maximum /nm, peak transmission /% 3.00, 40(at 300 nm) 2.00,40(at 447 nm) Signal PMT H10426-01(SO2) H10426(NO2) Detection Effective area /mm 25 25 Data AD conversion PCI-9826H Acquisition Digitizer rate /MHz 10 Computer CPU /GHz 3.2
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Hu Shunxing, Chen Yafeng, Liu Qiuwu, Sun Peiyu, Huang Jian, Yang Jie, Wang Jie, Liu Linlin. Differential Absorption Lidar System for Background Atmospheric SO2 and NO2 Measurements[J]. Chinese Journal of Lasers, 2018, 45(9): 911009
Paper Information
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Received: Mar. 7, 2018
Accepted: --
Published Online: Sep. 8, 2018
The Author Email: Yafeng Chen (cyfustc@mail.ustc.edu.cn)
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