An optical fibre based ultra violet and visible absorption spectroscopy system for ozone concentration monitoring
An optical fibre based ultra violet and visible absorption spectroscopy system for ozone concentration monitoring
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用于臭氧浓度监测的光纤紫外和可见光吸收光谱系统
DOI：
10.1016/j.snb.2007.02.023
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发表时间：
2007
影响因子：
8.4
通讯作者：
E. Lewis
中科院分区：
文献类型：
--
作者：
S. O’Keeffe;C. Fitzpatrick;E. Lewis
研究和测试了基于 254 nm 紫外光和 600 nm 可见光光吸收的光纤测量臭氧的使用。由于紫外区域的吸收率很高，因此在紫外区域进行传感可以实现高度灵敏的探测器。可见光区域对臭氧的吸收明显较低，因此可以监测高浓度的臭氧。基于比尔-朗伯定律的计算证明了基于紫外线的传感器在确定 0–1mg/l 范围内的臭氧浓度时的高分辨率，以及基于可见光的传感器在 25–126mg/l 的宽范围内测量高浓度的能力。
The use of optical fibres for the measurement of ozone based on the optical absorption of UV light at 254nm and visible light at 600nm is investigated and tested. Sensing in the UV region allows for highly sensitive detectors due to its high absorption in that region. The visible region has a significantly lower absorption of ozone and so it is possible to monitor high ozone concentrations. Calculations based on the Beer–Lambert law are presented to demonstrate the high resolution of the UV based sensor in determining the concentration of ozone in the range of 0–1mg/l and the ability of the visible based sensor to measure high concentrations over a wide range of 25–126mg/l.