Microfiber-based sensor for measuring uric acid concentrations

Saidin, Norazlina and Idris, N. F. and Amaluddin, M. N. and Irawati, Ninik and Md Ralib, Aliza Aini and Harun, Sulaiman Wadi (2018) Microfiber-based sensor for measuring uric acid concentrations. Journal of Telecommunication, Electronic and Computer Engineering, 10 (2-7). pp. 49-52. ISSN 2180-1843 E-ISSN 2289-8131

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Abstract

Microfiber sensor is proposed and demonstrated using a fiber optic displacement sensor (FODS) based on intensity modulation technique for measurement of different concentrations of uric acid. The proposed sensor uses singlemode fiber (SMF) tapered using flame brushing technique to enhance the evanescent field around the fiber core to interact with the uric acid. The tapered area is bent manually and sets vertically on a clamp, facing the mirror in the beaker. It is placed within the linear range of a sensor’s displacement curve of 0 to 5000 µm. The calibration of tapered fiber sensor was done both in the air and diluted water. The sensor is capable of measuring the concentrations of uric acid from 100 ppm to 500 ppm with a measured sensitivity of 0.0218 dBm/ppm. The linearity and resolution of the proposed sensor are 99.21% and 28.219 ppm, respectively. In addition, the proposed microfiber FODS sensor using SMF exhibit good stability and repeatability. It provides numerous advantages in terms of simple design, less production cost and operation without forfeiting its sensitivity.

Item Type:	Article (Journal)
Additional Information:	5653/66883
Uncontrolled Keywords:	Displacement sensor; Microfiber; Single-mode fiber; Uric acid concentration
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Norazlina Saidin
Date Deposited:	17 Oct 2018 11:16
Last Modified:	17 Oct 2018 11:16
URI:	http://irep.iium.edu.my/id/eprint/66883

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