| DOAS监测排放烟气浓度时谱线漂移处理方法研究 |
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| 引用本文： | 孟国鑫,蔡小舒,赵琴.DOAS监测排放烟气浓度时谱线漂移处理方法研究[J].环境工程,2008(Z1). |
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| 作者姓名： | 孟国鑫 蔡小舒 赵琴 |
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| 作者单位： | 上海理工大学动力工程学院颗粒与两相流测量技术研究所; |
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| 基金项目： | 教育部博士学科点专项科研基金项目(20060252003); 上海市教委基金(05EZ11) |
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| 摘 要： | 差分吸收光谱法(DOAS)是利用气体在紫外可见光波段对光具有选择吸收的特性来测量气体浓度的一种方法。DOAS法连续监测系统的核心是软件部分,由于吸收谱线漂移现象的存在,光谱解析算法的改进对污染气体浓度的计算带来很大的影响。基于DOAS法研究监测排放烟气浓度时谱线漂移对浓度计算的影响,并提出将相关函数和相关系数结合参与浓度计算,实验的结果表明,可以有效地减小谱线漂移时浓度计算的误差。
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| 关 键 词： | 差分吸收光谱法(DOAS)谱线漂移 互相关 烟气排放连续监测系统(CEMS) |
STUDY ON RESOLVING THE DOAS SPECTRAL SHIFT IN CEMS |
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| Meng Guoxin Cai Xiaoshu Zhao Qin.STUDY ON RESOLVING THE DOAS SPECTRAL SHIFT IN CEMS[J].Environmental Engineering,2008(Z1). |
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| Authors: | Meng Guoxin Cai Xiaoshu Zhao Qin |
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| Institution: | Meng Guoxin Cai Xiaoshu Zhao Qin(Institute of Particle , Two-Phase Flow Measurement,University of Shanghai for Science , Technology Shanghai 200093) |
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| Abstract: | Differential optical absorption spectroscopy(DOAS) is the method for measuring the gaseous contamination component concentration by the characteristic of selective absorption for light in the UV-VIS region.The hardcore of DOAS method continuous monitoring system is software part,with the phenomena of absorption spectral shift,the improvement of spectral resolving method effects greatly the concentrate calculation of gaseous contamination.It is studied the effect of the DOSA spectral shift on the concentrate... |
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| Keywords: | differential optical absorption spectroscopy(DOAS) spectral shift cross-correlation continuous emission monitoring system(CEMS) |
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