In-Fiber Optic Salinity Sensing: A Potential Application for Offshore Concrete Structure Protection

被引：10

作者：

Luo, Dong ^{[1
]}

Li, Peng ^{[1
]}

Yue, Yanchao ^{[1
]}

Ma, Jianxun ^{[1
]}

Yang, Hangzhou ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710048, Peoples R China

[2] Univ Malaya, Photon Res Ctr, Kuala Lumpur 50603, Malaysia

来源：

SENSORS | 2017年 / 17卷 / 05期

基金：

中国国家自然科学基金;

关键词：

concrete structure; salinity; fiber optic sensor; SENSORS; TEMPERATURE; LEVEL; FBG;

D O I：

10.3390/s17050962

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The protection of concrete structures against corrosion in marine environments has always been a challenge due to the presence of a saline solution-A natural corrosive agent to the concrete paste and steel reinforcements. The concentration of salt is a key parameter influencing the rate of corrosion. In this paper, we propose an optical fiber-based salinity sensor based on bundled multimode plastic optical fiber (POF) as a sensor probe and a concave mirror as a reflector in conjunction with an intensity modulation technique. A refractive index (RI) sensing approach is analytically investigated and the findings are in agreement with the experimental results. A maximum sensitivity of 14,847.486/RIU can be achieved at RI = 1.3525. The proposed technique is suitable for in situ measurement and monitoring of salinity in liquid.

引用

页数：10

共 19 条

[1]

Emmanuel A., 2012, J Sustain Dev, V5, P200, DOI [10.5539/jsd.v5n6p74, DOI 10.5539/JSD.V5N6P74]

[2] Advances in measuring ocean salinity with an optical sensor [J].

Le Menn, M. ;

de la Tocnaye, J. L. de Bougrenet ;

Grosso, P. ;

Delauney, L. ;

Podeur, C. ;

Brault, P. ;

Guillerme, O. .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2011, 22 (11)

[3] Highly sensitive fiber Bragg grating refractive index sensors [J].

Liang, W ;

Huang, YY ;

Xu, Y ;

Lee, RK ;

Yariv, A .

APPLIED PHYSICS LETTERS, 2005, 86 (15) :1-3

[4] Tapered Polymer Fiber Sensors for Reinforced Concrete Beam Vibration Detection [J].

Luo, Dong ;

Ibrahim, Zainah ;

Ma, Jianxun ;

Ismail, Zubaidah ;

Iseley, David Thomas .

SENSORS, 2016, 16 (12)

[5] Added advantages in using a fiber Bragg grating sensor in the determination of early age setting time for cement pastes [J].

Luo, Dong ;

Ismail, Zubaidah ;

Ibrahim, Zainah .

MEASUREMENT, 2013, 46 (10) :4313-4320

[6] Use of Tapered Optical Fiber Sensors in Study of the Hydration Process of Cement Paste [J].

Luo, Dong ;

Ibrahim, Zainah ;

Yang, Hangzhou ;

Ismail, Zubaidah .

IEEE SENSORS JOURNAL, 2013, 13 (09) :3415-3420

[7] Optimization of the Geometries of Biconical Tapered Fiber Sensors for Monitoring the Early-Age Curing Temperatures of Concrete Specimens [J].

Luo, Dong ;

Ibrahim, Zainah ;

Ismail, Zubaidah ;

Xu, Bin .

COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING, 2013, 28 (07) :531-541

[8]

Nguyen L. V., 2011, PHOTON TECHNOL LETT, V3, P450

[9] A Highly Sensitive Fiber Optic Sensor Based on Two-Core Fiber for Refractive Index Measurement [J].

Rafael Guzman-Sepulveda, Jose ;

Guzman-Cabrera, Rafael ;

Torres-Cisneros, Miguel ;

Javier Sanchez-Mondragon, Jose ;

Alberto May-Arrioja, Daniel .

SENSORS, 2013, 13 (10) :14200-14213

[10] Miniaturized Long-Period Fiber Grating Assisted Surface Plasmon Resonance Sensor [J].

Schuster, Tobias ;

Herschel, Reinhold ;

Neumann, Niels ;

Schaeffer, Christian G. .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2012, 30 (08) :1003-1008

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