A new fiber optic salinity sensing device based on beam-through technique

Author

Rahman, H.A. ; Yasin, M. ; Harun, S.W. ; Ahmad, H.

Author_Institution

Dept. of Electr. Eng., Univ. of Malaya, Kuala Lumpur, Malaysia

fYear

2012

fDate

3-5 July 2012

Firstpage

535

Lastpage

539

Abstract

A simple salinity sensor for various concentrations of sodium chloride (NaCl) in de-ionized water is proposed and demonstrated. The beam-through technique is used to obtain output voltages of various sodium chloride solution concentrations. The concentrations of the sodium chloride solutions are measured in volume %. For a concentration change of sodium chloride from 0 to 12 % in de-ionized water, the output voltage increases linearly with a limit detection of 1.44 %. The fiber optic sensor is a promising alternative to other well-established methods for the measurement of sodium chloride solution concentration due to its simplicity of design, linearity, non-contact sensing, ruggedness and low fabrication cost.

Keywords

chemical sensors; chemical variables measurement; fibre optic sensors; measurement by laser beam; refractive index measurement; sodium compounds; NaCl; beam through technique; deionized water; fiber optic salinity sensing device; output voltage; sodium chloride; Optical fiber amplifiers; Optical fiber sensors; Refractive index; Temperature measurement; beam-through technique; fiber optic displacement sensor; non-contact sensing; salinity fiber sensor; sodium chloride in de-ionized water;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Communication Engineering (ICCCE), 2012 International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4673-0478-8

Type

conf

DOI

10.1109/ICCCE.2012.6271244

Filename

6271244