期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 153, 期 1, 页码 194-198出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2010.10.038
关键词
Surface plasmon resonance; Optical fiber; Sensor; Ethanol; Refractive index
资金
- Department of Science and Technology (India)
- Council of Scientific and Industrial Research (India)
A fiber optic sensor utilizing surface plasmon resonance (SPR) has been fabricated for the detection of low content of water in ethanol. The sensor utilizes spectral interrogation technique for operation. The resonance wavelength has been found to vary linearly with water content in the range 0-10% with sensitivity of 1.149 nm per percentage of water. The results are in agreement with the refractive index variation of ethanol-water mixture. The sensor has a water resolution of 0.145% which is better than the evanescent wave absorption sensor reported for the similar study. The sensor will find application in determining the low water content in ethanol which is used as a bio-fuel and in the field of medicine and organic chemistry. (C) 2010 Elsevier B.V. All rights reserved.
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