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Relative humidity sensing using a PMMA doped Agarose gel microfiber

Humidity sensors rely on humidity-induced refractive index change in the sensing material despite the sensor configuration. Polymer-based microwires can absorb water vapor molecules and detect humidity changes without the need of further coating. However, the sensitivity-simplicity trade-off is stil...

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Main Authors: Irawati, Ninik, A. Rahman, Husna, Yasin, Moh, Askari, Shadi, Hamida, Belal Ahmed, Ahmad, Harith, W. Harun, Sulaiman
Format: Article
Language:English
English
English
Published: The Optical Society 2017
Subjects:
TK452 Electric apparatus and materials. Electric circuits. Electric networks
Online Access:http://irep.iium.edu.my/58263/1/58263_Relative%20humidity%20sensing.pdf
http://irep.iium.edu.my/58263/2/58263_Relative%20humidity%20sensing_SCOPUS.pdf
http://irep.iium.edu.my/58263/3/58263_Relative%20humidity%20sensing_WOS.pdf
http://irep.iium.edu.my/58263/
https://www.osapublishing.org/jlt/abstract.cfm?uri=jlt-35-18-3940
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spelling my.iium.irep.582632017-10-31T04:09:32Z http://irep.iium.edu.my/58263/ Relative humidity sensing using a PMMA doped Agarose gel microfiber Irawati, Ninik A. Rahman, Husna Yasin, Moh Askari, Shadi Hamida, Belal Ahmed Ahmad, Harith W. Harun, Sulaiman TK452 Electric apparatus and materials. Electric circuits. Electric networks Humidity sensors rely on humidity-induced refractive index change in the sensing material despite the sensor configuration. Polymer-based microwires can absorb water vapor molecules and detect humidity changes without the need of further coating. However, the sensitivity-simplicity trade-off is still a challenge. Sophisticated coating methods, complex resonating structures and nano-structured films are reported as methods to enhance the device sensitivity. A simple technique, to build a high sensitivity RH sensor based on an agarose-doped Poly Methyl Methacrylate (PMMA) sensor head, is demonstrated. The waist diameter and uniform length of the PMMA doped agarose gel microfiber were measured to be 6 μm and 10 mm, respectively. The sensor can achieve power variation of up to 2.9μW in a wide relative humidity range (50-80%), and display linear response with a correlation coefficient of 98.29 %, sensitivity of 0.421 dB/%RH and resolution of 0.431%RH. This agarose-based optical sensor provides a beneficial complement to the existing electrical ones, and will promote the employment of agarose in chemical sensing techniques. The Optical Society 2017-09-15 Article REM application/pdf en http://irep.iium.edu.my/58263/1/58263_Relative%20humidity%20sensing.pdf application/pdf en http://irep.iium.edu.my/58263/2/58263_Relative%20humidity%20sensing_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/58263/3/58263_Relative%20humidity%20sensing_WOS.pdf Irawati, Ninik and A. Rahman, Husna and Yasin, Moh and Askari, Shadi and Hamida, Belal Ahmed and Ahmad, Harith and W. Harun, Sulaiman (2017) Relative humidity sensing using a PMMA doped Agarose gel microfiber. Journal of Lightwave Technology, 35 (18). pp. 3940-3944. ISSN 0733-8724 https://www.osapublishing.org/jlt/abstract.cfm?uri=jlt-35-18-3940 10.1109/JLT.2017.2698044
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
English
English
topic TK452 Electric apparatus and materials. Electric circuits. Electric networks
spellingShingle TK452 Electric apparatus and materials. Electric circuits. Electric networks
Irawati, Ninik
A. Rahman, Husna
Yasin, Moh
Askari, Shadi
Hamida, Belal Ahmed
Ahmad, Harith
W. Harun, Sulaiman
Relative humidity sensing using a PMMA doped Agarose gel microfiber
description Humidity sensors rely on humidity-induced refractive index change in the sensing material despite the sensor configuration. Polymer-based microwires can absorb water vapor molecules and detect humidity changes without the need of further coating. However, the sensitivity-simplicity trade-off is still a challenge. Sophisticated coating methods, complex resonating structures and nano-structured films are reported as methods to enhance the device sensitivity. A simple technique, to build a high sensitivity RH sensor based on an agarose-doped Poly Methyl Methacrylate (PMMA) sensor head, is demonstrated. The waist diameter and uniform length of the PMMA doped agarose gel microfiber were measured to be 6 μm and 10 mm, respectively. The sensor can achieve power variation of up to 2.9μW in a wide relative humidity range (50-80%), and display linear response with a correlation coefficient of 98.29 %, sensitivity of 0.421 dB/%RH and resolution of 0.431%RH. This agarose-based optical sensor provides a beneficial complement to the existing electrical ones, and will promote the employment of agarose in chemical sensing techniques.
format Article
author Irawati, Ninik
A. Rahman, Husna
Yasin, Moh
Askari, Shadi
Hamida, Belal Ahmed
Ahmad, Harith
W. Harun, Sulaiman
author_facet Irawati, Ninik
A. Rahman, Husna
Yasin, Moh
Askari, Shadi
Hamida, Belal Ahmed
Ahmad, Harith
W. Harun, Sulaiman
author_sort Irawati, Ninik
title Relative humidity sensing using a PMMA doped Agarose gel microfiber
title_short Relative humidity sensing using a PMMA doped Agarose gel microfiber
title_full Relative humidity sensing using a PMMA doped Agarose gel microfiber
title_fullStr Relative humidity sensing using a PMMA doped Agarose gel microfiber
title_full_unstemmed Relative humidity sensing using a PMMA doped Agarose gel microfiber
title_sort relative humidity sensing using a pmma doped agarose gel microfiber
publisher The Optical Society
publishDate 2017
url http://irep.iium.edu.my/58263/1/58263_Relative%20humidity%20sensing.pdf
http://irep.iium.edu.my/58263/2/58263_Relative%20humidity%20sensing_SCOPUS.pdf
http://irep.iium.edu.my/58263/3/58263_Relative%20humidity%20sensing_WOS.pdf
http://irep.iium.edu.my/58263/
https://www.osapublishing.org/jlt/abstract.cfm?uri=jlt-35-18-3940
_version_ 1643615316869120000
score 13.211869

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