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

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...

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Main Authors: Luo, D., Li, P., Yue, Y.C., Ma, J.X., Yang, H.Z.
Format: Article
Published: MDPI 2017
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/19105/
http://dx.doi.org/10.3390/s17050962
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spelling my.um.eprints.191052018-09-05T02:42:31Z http://eprints.um.edu.my/19105/ In-Fiber Optic Salinity Sensing: A Potential Application for Offshore Concrete Structure Protection Luo, D. Li, P. Yue, Y.C. Ma, J.X. Yang, H.Z. TA Engineering (General). Civil engineering (General) 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. MDPI 2017 Article PeerReviewed Luo, D. and Li, P. and Yue, Y.C. and Ma, J.X. and Yang, H.Z. (2017) In-Fiber Optic Salinity Sensing: A Potential Application for Offshore Concrete Structure Protection. Sensors, 17 (5). p. 962. ISSN 1424-8220 http://dx.doi.org/10.3390/s17050962 doi:10.3390/s17050962
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Luo, D.
Li, P.
Yue, Y.C.
Ma, J.X.
Yang, H.Z.
In-Fiber Optic Salinity Sensing: A Potential Application for Offshore Concrete Structure Protection
description 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.
format Article
author Luo, D.
Li, P.
Yue, Y.C.
Ma, J.X.
Yang, H.Z.
author_facet Luo, D.
Li, P.
Yue, Y.C.
Ma, J.X.
Yang, H.Z.
author_sort Luo, D.
title In-Fiber Optic Salinity Sensing: A Potential Application for Offshore Concrete Structure Protection
title_short In-Fiber Optic Salinity Sensing: A Potential Application for Offshore Concrete Structure Protection
title_full In-Fiber Optic Salinity Sensing: A Potential Application for Offshore Concrete Structure Protection
title_fullStr In-Fiber Optic Salinity Sensing: A Potential Application for Offshore Concrete Structure Protection
title_full_unstemmed In-Fiber Optic Salinity Sensing: A Potential Application for Offshore Concrete Structure Protection
title_sort in-fiber optic salinity sensing: a potential application for offshore concrete structure protection
publisher MDPI
publishDate 2017
url http://eprints.um.edu.my/19105/
http://dx.doi.org/10.3390/s17050962
_version_ 1643690889026994176
score 13.211869

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