Measurement of the degree of salinity of water with a fiber-optic sensor

被引：69

作者：

Esteban, O ^{[1
]}

Cruz-Navarrete, M ^{[1
]}

González-Cano, A ^{[1
]}

Bernabeu, E ^{[1
]}

机构：

[1] Univ Complutense, Fac Ciencias Fis, Dept Opt, E-28040 Madrid, Spain

来源：

APPLIED OPTICS | 1999年 / 38卷 / 25期

关键词：

D O I：

10.1364/AO.38.005267

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A fiber-optic sensor based on surface-plasmon resonance for the determination of the refractive index is used for measuring the degree of salinity of water. The transducing element consists of a multilayer structure deposited on a side-polished monomode optical fiber. Measuring the attenuation of the power transmitted by the fiber shows that a linear relation with the refractive index of the outer medium of the structure is obtained. The system is characterized by use of a varying refractive index obtained with a mixture of water and ethylene glycol. Experimental results show that the sensor can be used as a salinity-degree measurement device with environmental applications. (C) 1999 Optical Society of America. OCIS codes: 010.4450, 010.7340, 060.2370, 120.4630, 240.6680, 310.2790.

引用

页码：5267 / 5271

页数：5

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