Using broadband absorption spectroscopy to measure concentration of sulfur dioxide

作者：Wang H S; Zhang Y G; Wu S H; Lou X T; Zhang Z G; Qin Y K^*

来源：Applied Physics B: Lasers and Optics , 2010, 100(3): 637-641.

DOI：10.1007/s00340-010-4151-2

A linear relationship between concentration of sulfur dioxide (SO(2)) and optical parameter (OP) is established using the Beer-Lambert law. The SO(2) measuring system is set up to measure the concentration of sulfur dioxide in the wavelength range 275-315 nm. Experimental results indicate that the detection limit of the sulfur dioxide measuring system is below 0.2 ppm per meter of path length, and the measurement precision is better than +/- 1%. The proposed SO(2) measuring method features limited interference from other gases and dust, and high stability and short response time.

• 出版日期2010-9
• 单位哈尔滨工业大学