Optical fiber attenuated total reflection sensor for on-line measurement of biomass concentration

被引：0

作者：

Zhao M.-F. ^{[1
]}

Zhong N.-B. ^{[1
]}

Luo B.-B. ^{[1
]}

Hu X.-Y. ^{[1
]}

Zhong L.-C. ^{[1
]}

机构：

[1] Department of Electronic Information and Automation, Chongqing University of Technology

来源：

Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2010年 / 18卷 / 08期

关键词：

Biomass concentration; On-line measurement; Optical fiber Attenuated Total Reflection(ATR) sensor;

D O I：

10.3788/OPE.20101808.1707

中图分类号：

学科分类号：

摘要：

With the aim to measure the biomass concentration in the biodegradation of organic waste gas for a trickling biofilter, an optical fiber Attenuated Total Reflection(ATR) sensor for measuring the biomass concentration was designed and the composition principle, structural parameters, optical path analysis and the theoretical explanation of the sensor were also discussed. A new method to measure the biomass concentration was proposed based on the principles that the evanescent wave is scattered and absorbed by the bacterial suspension when the beams enter into the interface between the optically denser medium-Si crystal and the optically less dense-bacterial suspension, and the receiving bacterial power of the light is changed by the bacterial suspension. Under a temperature of 25°C, the biomass concentration was measured by a visible light source. Experimental results indicate that the mean relative error by proposed method is 2.217%, which can satisfy the on-line measurement requirements of the biomass concentration. The design principle and method of the sensor is significance and can be used in reagent preparation, alcohol production, biochemistry, etc.

引用

页码：1707 / 1714

页数：7

共 13 条

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