%0 Journal Article
%A Esteban Martínez, Óscar
%A Navarrete Fernández, María Cruz
%A González Cano, Agustín
%A Bernabeu Martínez, Eusebio
%T Measurement of the degree of salinity of water with a fiber-optic sensor
%D 1999
%@ 1559-128X
%U https://hdl.handle.net/20.500.14352/59242
%X 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.
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