Planar magnetoelectric voltage transformer based on a composite ferromagnet-piezoelectric heterostructure

被引：3
|
作者：
Chashin, D., V [1 ]
Fetisov, L. Y. [1 ]
Saveliev, D., V [1 ]
Fetisov, Y. K. [1 ]
机构：
[1] MIREA Russian Technol Univ, Pr Vernadskogo 78, Moscow 119454, Russia
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2021年 / 328卷
基金：
俄罗斯科学基金会;
关键词：
Magnetoelectric effect; Voltage transformer; Composite structure; Magnetostriction; Piezoelectricity;
D O I：
10.1016/j.sna.2021.112773
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A planar magnetoelectric voltage transformer based on a layered composite structure containing layers of amorphous ferromagnet and piezoelectric lead zirconate-titanate has been fabricated and investigated. The transformer uses a coilless system (the so-called & uml;magnetic capacitor) & uml; to excite the direct magne-toelectric effect at the frequency of the acoustic resonance of the structure, which made it possible to significantly simplify the design. The voltage transformation ratio of the magnetoelectric transformer, in contrast to the known electromagnetic or piezoelectric transformers, can be tuned by an external mag-netic field from zero to 13.2 with an increase in the field from zero to 30 Oe. The operating range of the output voltage of the transformer is 0 & minus;400 mV, and the output power reaches 9 & micro;W at optimal load resistance. The technique for calculating the characteristics of the transformer is described. (c) 2021 Elsevier B.V. All rights reserved.
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页数：6
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