Abstract

Simple relative humidity sensors are demonstrated using tapered silica microfibers. The silica microfibers are tapered using flame brushing method to reduce the fiber’s waist diameter from 128 micrometers to 2.6 micrometers. The tapered silica microfibers were then coated using polyvinyl acetate (PVA) and polymethyl methacrylate (PMMA) before it was used to sense the relative humidity. The tapered silica microfiber coated with PVA performed better compared to tapered silica microfiber coated using PMMA. The tapered silica microfiber with PVA based sensor has better sensitivity of 0.3023 dB/RH%.

Details

Title
A study on relative humidity sensors using PVA and PMMA coating
Author
Harith, Zuraidah 1 ; Huda Adnan Abdullah Zain 2 ; Batumalay, Malathy 3 ; Harun, Sulaiman Wadi 2 

1  Faculty of Engineering & Quantity Survey, INTI International University, 71800 Nilai, Negeri Sembilan, Malaysia 
2  Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia 
3  Faculty of IT, INTI International University, 71800 Nilai, Negeri Sembilan, Malaysia 
Publication year
2019
Publication date
Nov 2019
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1088/1742-6596/1371/1/012027
ProQuest document ID
2568444279
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.