FIBER OPTIC CHEMICAL SENSOR USING FIBER COUPLER PROBE BASED ON INTENSITY MODULATION FOR ALCOHOL DETECTION

被引：9
|
作者：
Yasin, M. [1 ,2 ]
Harun, S. W. [1 ,3 ]
Tan, C. F. [3 ]
Phang, S. W. [4 ]
Ahmad, H. [1 ]
机构：
[1] Univ Malaya, Fac Sci, Photon Res Ctr, Dept Phys, Kuala Lumpur 50603, Malaysia
[2] Airlangga Univ, Fac Sci & Technol, Dept Phys, Surabaya 60115, Indonesia
[3] Univ Malaya, Fac Engn, Dept Elect Engn, Kuala Lumpur 50603, Malaysia
[4] Univ Malaya, Fac Sci, Dept Chem, Kuala Lumpur 50603, Malaysia
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2011年 / 53卷 / 08期
关键词：
chemical sensor; fiber optic sensor; fiber coupler probe; LIQUID REFRACTIVE-INDEX; DISPLACEMENT SENSOR; BUNDLE FIBER; TEMPERATURE;
D O I：
10.1002/mop.26124
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A simple intensity modulation based displacement sensor using fiber optic coupler probe is proposed and demonstrated for sensing the concentration of alcohol solution. The intensity of light curve is dependent on the concentration of the alcohol solution. For a concentration change of methanol from 0 to 35 % in distilled water, the sensitivity is observed to be increased linearly with the concentration due to the reduction of the refractive index of the solution. The highest sensitivity is obtained at around 0.00002mV/(%). The stability, high sensitivity and simplicity of the sensor make it suitable for chemical, pharmaceutical, biomedical and process control sensing applications. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53: 19351938, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26124
引用
收藏
页码：1935 / 1938
页数：5
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