紫外吸收法水质监测的光信号探测与处理方法

大气与环境光学学报 ›› 2009, Vol. 4 ›› Issue (5): 393-400.

• 环境光学 • 上一篇

紫外吸收法水质监测的光信号探测与处理方法

程寅, 刘建国, 陆亦怀, 王亚平, 方武, 陈军

（中国科学院环境光学与技术重点实验室，安徽合肥 230031）

收稿日期:2009-05-05 修回日期:2009-08-17 出版日期:2009-09-28 发布日期:2009-09-28
通讯作者: 程寅（1972-）,硕士,中科院安徽光机所中国科学院环境光学与技术重点实验室，主要从事光学环境监测方面的研究。 E-mail:chenyin@aiofm.ac.cn
作者简介:程寅（1972-）,硕士,中科院安徽光机所中国科学院环境光学与技术重点实验室，主要从事光学环境监测方面的研究。
基金资助:
中科院知识创新项目（030331）资助课题

Optical Signal Detecting and Processing For Water Quality Measuring System by Ultraviolet Spectrum Absorption

CHENG Yin, LIU Jian-guo, LU Yi-huai, WANG Ya-ping, FANG Wu, CHEN Jun

（Key Lab of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Heifei 230031,China）

Received:2009-05-05 Revised:2009-08-17 Published:2009-09-28 Online:2009-09-28

摘要/Abstract

摘要：

在紫外光谱吸收法水质监测中，光信号的探测与处理是一项关键技术。利用双光路单通道循环分时采样方法，在软件控制下分时探测背景、参考、测量光强，消除了由于背景光的干扰和光源强度变化带来的影响，提高了监测系统的可靠性和精确性。并采用了双波段测量方式，用于消除水中浊度的影响，具有很强的实用性。用标准溶液进行了实验，相对标准偏差不超过1%，最大相对误差小于2.0%，说明系统有很高的精确性、准确性。

关键词: 水污染, 吸光度, 紫外光谱吸收法, 信号探测与处理

Abstract:

In water quality measuring methods using ultraviolet spectrum absorption, optical signal detecting techniques are very important. Key techniques are the time-sharing sampling system containing background light sampling, referring and measuring with one detector in double light path, and eliminating influence that comes from the drift of light source and background light. The double wavelength band detecting model can overcome the influence of turbidity in water. The techniques make apparatus more precise and reliable. The standard deviation is less than 1% and the maximum relative error is less than 2% for measurement of standard solutions. These results indicate that the precision and accuracy of the apparatus are good.

Key words: water pollution, absorbance, ultraviolet absorbance, signal detecting and processing

中图分类号:

程寅刘建国陆亦怀王亚平方武陈军. 紫外吸收法水质监测的光信号探测与处理方法[J]. 大气与环境光学学报, 2009, 4(5): 393-400.

CHENG Yin, LIU Jian-Guo, LU Yi-Huai, WANG Ya-Ping, FANG Wu, CHEN Jun. Optical Signal Detecting and Processing For Water Quality Measuring System by Ultraviolet Spectrum Absorption[J]. Journal of Atmospheric and Environmental Optics, 2009, 4(5): 393-400.

参考文献

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紫外吸收法水质监测的光信号探测与处理方法

Optical Signal Detecting and Processing For Water Quality Measuring System by Ultraviolet Spectrum Absorption

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