Citation

Mahmud, Zulkifli and Ibrahim@Ghazali, Siti Azlida and Azman, Mohd Fahmi and Mokhtar, Mohd Ridzuan and Abdul Rashid, Hairul Azhar and Mad Zahir, Mohamad Hafizal (2024) Distributed magnetic field sensor using nickel-acrylate composite coated silica optical fiber. Optik - International Journal for Light and Electron Optics, 305. p. 171788. ISSN 0030-4026

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Abstract

This paper reports on the development and characterization of a distributed magnetic field sensor utilizing magnetostrictive material and the Rayleigh backscattered signal in optical fiber. The sensor consists of a single-mode fiber (SMF) coated with nickel-acrylate (Ni-Acryl) composite, fabricated using the conventional fiber drawing method. The surface morphology and the coating thickness of the Ni-Acryl were analysed using SEM. The sensor is capable of measuring variations in the strain of the fiber as the external magnetic field strength changes, with a spatial resolution of 20 cm. The experimental results revealed a linear relationship between magnetic field strength and Rayleigh frequency shift, with an average sensitivity of 22.85 MHz/mT. The magnetostrictive strain of the Ni-Acryl composite coated fiber is measured to be 36.4 με in response to the 245 mT applied magnetic field. This study highlights the potential of the developed sensor to be utilized in magnetic field sensing applications, particularly for remote sensing applications in a harsh environment.

Item Type:	Article
Uncontrolled Keywords:	Distributed, Rayleigh, Magnetostriction, Magnetic field, Optical fiber, Strain
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7871 Electronics--Materials
Divisions:	Faculty of Engineering (FOE)
Depositing User:	Ms Nurul Iqtiani Ahmad
Date Deposited:	02 May 2024 02:39
Last Modified:	02 May 2024 02:39
URII:	http://shdl.mmu.edu.my/id/eprint/12387

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