Fiber-Optic Salinity Sensor Using Fiber-Optic Displacement Measurement With Flat and Concave Mirror

A simple intensity modulated displacement sensor is proposed for sensing salinity based on different concentration of sodium chloride (NaCl) in deionized water. The proposed sensor uses a 594-nm He-Ne laser as light source due to the high absorbance of NaCl within that wavelength. The peak voltage a...

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Main Authors: Rahman, Husna Abdul, Harun, Sulaiman Wadi, Yasin, Moh, Ahmad, Harith
Format: Article
Published: Institute of Electrical and Electronics Engineers (IEEE) 2012
Subjects:
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author Rahman, Husna Abdul
Harun, Sulaiman Wadi
Yasin, Moh
Ahmad, Harith
author_facet Rahman, Husna Abdul
Harun, Sulaiman Wadi
Yasin, Moh
Ahmad, Harith
author_sort Rahman, Husna Abdul
collection UM
description A simple intensity modulated displacement sensor is proposed for sensing salinity based on different concentration of sodium chloride (NaCl) in deionized water. The proposed sensor uses a 594-nm He-Ne laser as light source due to the high absorbance of NaCl within that wavelength. The peak voltage and its position of the displacement from both flat and concave mirror are studied. For a concentration change from 0% to 12%, the peak voltage decreases linearly from 2.46 to 1.48 mV, while its corresponding position from the flat mirror increases linearly from 1.00 to 1.35 mm with a linearity of more than 96% and 99%, respectively. Similarly, the peak voltage corresponding to the displacement with concave mirror decreases linearly from 3.67 to 3.57 mV, while its position increases linearly from 1.20 to 1.45 mm with a linearity of more than 98% and 95%, respectively. From the experimental results, it is concluded that as the concentration or density of NaCl increases, the peak voltage decreases proportionately. The stability, high sensitivity, simplicity of design, and low fabrication cost make this sensor suitable for chemical, pharmaceutical, biomedical, and process-control application.
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spelling um.eprints-199292019-01-07T07:47:53Z http://eprints.um.edu.my/19929/ Fiber-Optic Salinity Sensor Using Fiber-Optic Displacement Measurement With Flat and Concave Mirror Rahman, Husna Abdul Harun, Sulaiman Wadi Yasin, Moh Ahmad, Harith QC Physics TK Electrical engineering. Electronics Nuclear engineering A simple intensity modulated displacement sensor is proposed for sensing salinity based on different concentration of sodium chloride (NaCl) in deionized water. The proposed sensor uses a 594-nm He-Ne laser as light source due to the high absorbance of NaCl within that wavelength. The peak voltage and its position of the displacement from both flat and concave mirror are studied. For a concentration change from 0% to 12%, the peak voltage decreases linearly from 2.46 to 1.48 mV, while its corresponding position from the flat mirror increases linearly from 1.00 to 1.35 mm with a linearity of more than 96% and 99%, respectively. Similarly, the peak voltage corresponding to the displacement with concave mirror decreases linearly from 3.67 to 3.57 mV, while its position increases linearly from 1.20 to 1.45 mm with a linearity of more than 98% and 95%, respectively. From the experimental results, it is concluded that as the concentration or density of NaCl increases, the peak voltage decreases proportionately. The stability, high sensitivity, simplicity of design, and low fabrication cost make this sensor suitable for chemical, pharmaceutical, biomedical, and process-control application. Institute of Electrical and Electronics Engineers (IEEE) 2012 Article PeerReviewed Rahman, Husna Abdul and Harun, Sulaiman Wadi and Yasin, Moh and Ahmad, Harith (2012) Fiber-Optic Salinity Sensor Using Fiber-Optic Displacement Measurement With Flat and Concave Mirror. IEEE Journal of Selected Topics in Quantum Electronics, 18 (5). pp. 1529-1533. ISSN 1077-260X, DOI https://doi.org/10.1109/JSTQE.2011.2159705 <https://doi.org/10.1109/JSTQE.2011.2159705>. https://doi.org/10.1109/JSTQE.2011.2159705 doi:10.1109/JSTQE.2011.2159705
spellingShingle QC Physics
TK Electrical engineering. Electronics Nuclear engineering
Rahman, Husna Abdul
Harun, Sulaiman Wadi
Yasin, Moh
Ahmad, Harith
Fiber-Optic Salinity Sensor Using Fiber-Optic Displacement Measurement With Flat and Concave Mirror
title Fiber-Optic Salinity Sensor Using Fiber-Optic Displacement Measurement With Flat and Concave Mirror
title_full Fiber-Optic Salinity Sensor Using Fiber-Optic Displacement Measurement With Flat and Concave Mirror
title_fullStr Fiber-Optic Salinity Sensor Using Fiber-Optic Displacement Measurement With Flat and Concave Mirror
title_full_unstemmed Fiber-Optic Salinity Sensor Using Fiber-Optic Displacement Measurement With Flat and Concave Mirror
title_short Fiber-Optic Salinity Sensor Using Fiber-Optic Displacement Measurement With Flat and Concave Mirror
title_sort fiber optic salinity sensor using fiber optic displacement measurement with flat and concave mirror
topic QC Physics
TK Electrical engineering. Electronics Nuclear engineering
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