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Self-Biased Bidomain LiNbO3/Ni/Metglas Magnetoelectric Current Sensor

Department of Design and Technology of Radioequipment, Yaroslav-the-Wise Novgorod State University, ul. B. St. Petersburgskaya, 41, 173003 Veliky Novgorod, Russia
Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology MISiS, Leninskiy Prospekt 4, 119049 Moscow, Russia
Department of Physics and I3N, University of Aveiro, 3810-193 Aveiro, Portugal
Author to whom correspondence should be addressed.
Sensors 2020, 20(24), 7142;
Received: 8 November 2020 / Revised: 9 December 2020 / Accepted: 9 December 2020 / Published: 13 December 2020
(This article belongs to the Special Issue Magnetoelectric Sensors: Theory, Design and Application)
The article is devoted to the theoretical and experimental study of a magnetoelectric (ME) current sensor based on a gradient structure. It is known that the use of gradient structures in magnetostrictive-piezoelectric composites makes it possible to create a self-biased structure by replacing an external magnetic field with an internal one, which significantly reduces the weight, power consumption and dimensions of the device. Current sensors based on a gradient bidomain structure LiNbO3 (LN)/Ni/Metglas with the following layer thicknesses: lithium niobate—500 μm, nickel—10 μm, Metglas—29 μm, operate on a linear section of the working characteristic and do not require the bias magnetic field. The main characteristics of a contactless ME current sensor: its current range measures up to 10 A, it has a sensitivity of 0.9 V/A, its current consumption is not more than 2.5 mA, and its linearity is maintained to an accuracy of 99.8%. Some additional advantages of a bidomain lithium niobate-based current sensor are the increased sensitivity of the device due to the use of the bending mode in the electromechanical resonance region and the absence of a lead component in the device. View Full-Text
Keywords: magnetoelectric effect; magnetoelectric gradient structure; bidomain lithium niobate; magnetoelectric sensor; current sensor magnetoelectric effect; magnetoelectric gradient structure; bidomain lithium niobate; magnetoelectric sensor; current sensor
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MDPI and ACS Style

Bichurin, M.I.; Petrov, R.V.; Leontiev, V.S.; Sokolov, O.V.; Turutin, A.V.; Kuts, V.V.; Kubasov, I.V.; Kislyuk, A.M.; Temirov, A.A.; Malinkovich, M.D.; Parkhomenko, Y.N. Self-Biased Bidomain LiNbO3/Ni/Metglas Magnetoelectric Current Sensor. Sensors 2020, 20, 7142.

AMA Style

Bichurin MI, Petrov RV, Leontiev VS, Sokolov OV, Turutin AV, Kuts VV, Kubasov IV, Kislyuk AM, Temirov AA, Malinkovich MD, Parkhomenko YN. Self-Biased Bidomain LiNbO3/Ni/Metglas Magnetoelectric Current Sensor. Sensors. 2020; 20(24):7142.

Chicago/Turabian Style

Bichurin, Mirza I., Roman V. Petrov, Viktor S. Leontiev, Oleg V. Sokolov, Andrei V. Turutin, Victor V. Kuts, Ilya V. Kubasov, Alexander M. Kislyuk, Alexander A. Temirov, Mikhail D. Malinkovich, and Yuriy N. Parkhomenko. 2020. "Self-Biased Bidomain LiNbO3/Ni/Metglas Magnetoelectric Current Sensor" Sensors 20, no. 24: 7142.

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