| LI Wen-jun.Design of atmospheric composition monitor based on ultraviolet optical absorption technology[J].Optoelectronics Letters,2011,7(5):384-388 |
| Design of atmospheric composition monitor based on ultraviolet optical absorption technology |
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| Abstract: |
| An open path atmospheric composition monitor is designed based on ultraviolet differential absorption technology.Dark current correction and diode response correction are used to improve the detection limit and Savitzky-Golay filter is used to improve the measurement accuracy.The experimental results show that the designed system has the ability to measure NO and NO 2 in real time with reasonable accuracy.The detection limit of the system is about 0.25 ppm for NO and 0.28 ppm for NO 2 .When the ... |
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