A study of relative humidity fiber-optic sensors

A humidity sensor made of tapered plastic optical fiber (POF) coated with agarose gel or hydroxyethylcellulose/polyvinylidenefluoride (HEC/PVDF) detects humidity from the change in the refractive index (RI) of its coating. The RI of the deposited agarose gel or HEC/PVDF coating changes when it swell...

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Main Authors:	Batumalay, M., Harun, S.W., Irawati, N., Ahmad, H., Arof, H.
Format:	Article
Published:	Institute of Electrical and Electronics Engineers (IEEE) 2015
Subjects:	T Technology (General) TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6951370&tag=1 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6951370&tag=1 http://eprints.um.edu.my/13906/1/A_Study_of_Relative_Humidity_Fiber%2DOptic_Sensors.pdf

id	um-13906
recordtype	eprints
spelling	um-139062017-11-09T07:54:36Z A study of relative humidity fiber-optic sensors Batumalay, M. Harun, S.W. Irawati, N. Ahmad, H. Arof, H. T Technology (General) TK Electrical engineering. Electronics Nuclear engineering A humidity sensor made of tapered plastic optical fiber (POF) coated with agarose gel or hydroxyethylcellulose/polyvinylidenefluoride (HEC/PVDF) detects humidity from the change in the refractive index (RI) of its coating. The RI of the deposited agarose gel or HEC/PVDF coating changes when it swells after absorbing water molecules from the surrounding. Similarly, when a tapered POF seeded with ZnO nanostructure is exposed to ambient humidity, a rapid surface adsorption of water molecules into the ZnO surface occurs. Therefore, the effective RI of its coating, which consists of the thin ZnO nanostrtucture and air, changes with humidity variation. For all of these sensors, the change in the RI of the coating affects the ability of the fiber to modulate light, thereby altering the output light intensity. In this paper, the performances of the three coating materials used with tapered fibers to construct humidity sensors are investigated. The results of the experiments show that agarose gel, HEC/PVDF, and ZnO-based optical fiber sensors are both sensitive and efficient for humidity sensing. Institute of Electrical and Electronics Engineers (IEEE) 2015-03 Article PeerReviewed application/pdf http://eprints.um.edu.my/13906/1/A_Study_of_Relative_Humidity_Fiber%2DOptic_Sensors.pdf http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6951370&tag=1 Batumalay, M.; Harun, S.W.; Irawati, N.; Ahmad, H.; Arof, H. (2015) A study of relative humidity fiber-optic sensors. IEEE Sensors Journal <http://eprints.um.edu.my/view/publication/IEEE_Sensors_Journal.html>, 15 (3). pp. 1945-1950. ISSN 1530-437X http://eprints.um.edu.my/13906/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
topic	T Technology (General) TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	T Technology (General) TK Electrical engineering. Electronics Nuclear engineering Batumalay, M. Harun, S.W. Irawati, N. Ahmad, H. Arof, H. A study of relative humidity fiber-optic sensors
description	A humidity sensor made of tapered plastic optical fiber (POF) coated with agarose gel or hydroxyethylcellulose/polyvinylidenefluoride (HEC/PVDF) detects humidity from the change in the refractive index (RI) of its coating. The RI of the deposited agarose gel or HEC/PVDF coating changes when it swells after absorbing water molecules from the surrounding. Similarly, when a tapered POF seeded with ZnO nanostructure is exposed to ambient humidity, a rapid surface adsorption of water molecules into the ZnO surface occurs. Therefore, the effective RI of its coating, which consists of the thin ZnO nanostrtucture and air, changes with humidity variation. For all of these sensors, the change in the RI of the coating affects the ability of the fiber to modulate light, thereby altering the output light intensity. In this paper, the performances of the three coating materials used with tapered fibers to construct humidity sensors are investigated. The results of the experiments show that agarose gel, HEC/PVDF, and ZnO-based optical fiber sensors are both sensitive and efficient for humidity sensing.
format	Article
author	Batumalay, M. Harun, S.W. Irawati, N. Ahmad, H. Arof, H.
author_facet	Batumalay, M. Harun, S.W. Irawati, N. Ahmad, H. Arof, H.
author_sort	Batumalay, M.
title	A study of relative humidity fiber-optic sensors
title_short	A study of relative humidity fiber-optic sensors
title_full	A study of relative humidity fiber-optic sensors
title_fullStr	A study of relative humidity fiber-optic sensors
title_full_unstemmed	A study of relative humidity fiber-optic sensors
title_sort	study of relative humidity fiber-optic sensors
publisher	Institute of Electrical and Electronics Engineers (IEEE)
publishDate	2015
url	http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6951370&tag=1 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6951370&tag=1 http://eprints.um.edu.my/13906/1/A_Study_of_Relative_Humidity_Fiber%2DOptic_Sensors.pdf
first_indexed	2018-09-06T06:18:32Z
last_indexed	2018-09-06T06:18:32Z
_version_	1610837878357622784

A study of relative humidity fiber-optic sensors

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