Research of On-line Monitoring of Ozone Concentration Based on Association Correlation and Differential Optical Absorption Spectroscopy-Fourier Transform
ZHENG Hai-ming1,2,YAO Peng-hui3
1. School of Mechanical and Energy Engineering, Guangdong Ocean University, Yangjiang, Guangdong 529500, China
2. School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding, Hebei 071003,China
3. Hebei Mechatronics Intermediate Pilot Production Base, Shijiazhuang, Hebei 050000, China
Abstract：The on-line measurement of ozone concentration was carried out by co-correlation and Fourier transform differential absorption spectroscopy. First, a set of generator that can be used for on-line monitoring of ozone concentration in the laboratory was created, and its measurement accuracy can reach 0.1×10-6. Then, the best background spectrum and absorption spectrum can be obtained by calculating the measured multi group background spectrum and absorption spectrum by using the co correlation, so as to accurately retrieve the ozone absorption cross section and optimize the calculation process of ozone concentration. Finally, Fourier transform differential absorption spectroscopy and inverse Fourier transform were used to retrieve ozone concentration in 320～350nm band, the interference of system noise was successfully eliminated and the quadratic equation for retrieving ozone concentration was obtained.
郑海明,姚鹏辉. 基于协相关性和傅里叶变换-差分吸收光谱法的臭氧浓度在线测量研究[J]. 计量学报, 2023, 44(2): 284-289.
ZHENG Hai-ming,YAO Peng-hui. Research of On-line Monitoring of Ozone Concentration Based on Association Correlation and Differential Optical Absorption Spectroscopy-Fourier Transform. Acta Metrologica Sinica, 2023, 44(2): 284-289.
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2023, Vol. 44 
