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Magnetoelectric vortex magnetic field sensors based on the metglas/PZT laminates

Giang, D.T.H. and Tam, H.A. and Khanh, V.T.N. and Vinh, N.T. and Tuan, P.A. and Tuan, N.V. and Ngoc, N.T. and Duc, N.H. (2020) Magnetoelectric vortex magnetic field sensors based on the metglas/PZT laminates. Sensors (Switzerland), 20 (10): 2810. ISSN 14248220

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Abstract

This paper describes the route, from simulations toward experiments, for optimizing the magnetoelectric (ME) geometries for vortex magnetic field sensors. The research is performed on the base of the Metglas/Piezoelectric (PZT) laminates in both open and closed magnetic circuit (OMC and CMC) geometries with different widths (W), lengths (L), and diameters (D). Among these geometries, the CMC laminates demonstrate advantages not only in their magnetic flux distribution, but also in their sensitivity and in their independence of the position of the vortex center. In addition, the ME voltage signal is found to be enhanced by increasing the magnetostrictive volume fraction. Optimal issues are incorporated to realize a CMC-based ME double sandwich current sensor in the ring shape with D × W = 6 mm × 1.5 mm and four layers of Metglas. At the resonant frequency of 174.4 kHz, this sensor exhibits the record sensitivity of 5.426 V/A as compared to variety of devices such as the CMC ME sensor family, fluxgate, magnetoresistive, and Hall-effect-based devices. It opens a potential to commercialize a new generation of ME-based current and (or) vortex magnetic sensors. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.

Item Type: Article
Divisions: Faculties > Faculty of Physical and Chemical Engineering
Identification Number: 10.3390/s20102810
Uncontrolled Keywords: Geometry; Laminates; Magnetic circuits; Magnetic fields; Magnetic sensors; Magnetometers; Natural frequencies; Vortex flow; Current sensors; Fluxgates; Magnetic flux distribution; Magnetoresistive; Voltage signals; Vortex centers; Vortex magnetic field sensors; Magnetic laminates
Additional Information: Language of original document: English. All Open Access, Gold, Green.
URI: http://eprints.lqdtu.edu.vn/id/eprint/9024

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