PMMA microfiber and Microball Resonator for fomaldehyde liquid sensing

Sharif, Maslinda Mat and Johari, Md Ashadi Md and Al Noman, Abdullah and Abdul Khudus, Muhammad Imran Mustafa and Harun, Sulaiman Wadi (2020) PMMA microfiber and Microball Resonator for fomaldehyde liquid sensing. Sensors and Actuators A: Physical, 304. p. 111828. ISSN 0924-4247

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Official URL: https://doi.org/10.1016/j.sna.2019.111828

Abstract

This experiment reports the fabrication of the Polymethyl Methaclyrate (PMMA) Microball Resonator (MBlR) as a liquid sensor tested on various level of concentration of the Formaldedhye liquid. The PMMA MBlR is fabricated via the “dipped and twirl” method to create the sphere-shaped ball with diameter Db = 320um. The MBlR is then optically excited using a 9 μm PMMA microfiber and was found to have a Q Factor of >104. The MBlR was then employed as a liquid sensor with the level percentage range between 0%–4% of Formaldehyde liquid and the performance is compared with a non MBlR microfiber. The MBlR sensor was found to have a sensitivity of 6.94 dB m/%, linearity >90 % and P-value of more than 105. The PMMA MBlR liquid sensor was also found to have a good repeatability and stability over a period of 60 s. © 2020 Elsevier B.V.

Item Type: Article
Uncontrolled Keywords: Fiber optic sensor; PMMA microfiber; Microball resonator; Formaldehyde sensing
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 24 Jun 2020 02:31
Last Modified: 24 Jun 2020 02:31
URI: http://eprints.um.edu.my/id/eprint/24960

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