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Mukhtar, Wan Maisarah
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Electrical & Electronics Engineering

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Zinc oxide-coated fiber-optic sensors for monitoring of edible oil adulteration with internet of things integration Haroon, Hazura; Othman, Siti Khadijah Idris@; Razak, Hanim Abdul; Zain, Anis Suhaila Mohd; Salehuddin, Fauziyah; Mukhtar, Wan Maisarah
Bulletin of Electrical Engineering and Informatics Vol 13, No 6: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v13i6.7604

Abstract

The study proposes a novel approach for detecting adulteration in edible oils utilising a zinc oxide (ZnO)-coated optical sensor. The procedure included the development of a sensor probe using a plastic optical fiber (POF) with a ZnO nanolayer deposition. The ZnO nanorods were applied to the surface of the POF via a hydrothermal process. The sensitivity and accuracy of uncoated and ZnO-coated POFs were compared, and it was discovered that the ZnO-coated POF was more sensitive to changes in the refractive index of the samples under testing. The study ascertained a correlation between the optical power and voltage of the sensor and the refractive index of the medium. As the adulterant concentration in the oil mixture increased, the refractive index of the medium altered. As a result, both the sensor’s output voltage and optical power decreased. Upon completion, it was discovered that the uncoated POF had a sensitivity of 0.073 V/%, whereas the ZnO-coated POF had a sensitivity of 0.085 V/%. These findings highlight the effectiveness of ZnO-coated optical sensors, as well as their potential integration into internet of things (IoT) platforms for monitoring adulteration in edible oils.
Co-Authors Haroon, Hazura Othman, Siti Khadijah Idris@ Razak, Hanim Abdul Salehuddin, Fauziyah Zain, Anis Suhaila Mohd