Circumferential-mode, quasi-ring-type, manetoelectric laminate composite - a highly sensitive electric current and/or vortex magnetic field sensor

被引：74

作者：

Dong, SX ^{[1
]}

Bai, JG

Zhai, JY

Li, JF

Lu, GQ

Viehland, D

Zhang, SJ

Shrout, TR

机构：

[1] Virginia Tech, Blacksburg, VA 24061 USA

[2] Penn State Univ, Inst Mat Res, University Pk, PA 16802 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 18期

关键词：

D O I：

10.1063/1.1923184

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A quasi-ring-type magnetoelectric (ME) laminate composite consisting of a circumferentially poled piezoelectric Pb(Zn1/3Nb2/3O)(3-)4.5 at.% PbTiO(3)single-crystal ring and two circumferentially magnetized magnetostrictive TERFENOL-D rings was fabricated and found to have a giant ME voltage coefficient of 2.2 V/Oe, or equivalently a ME field coefficient of 5.5 V/cm Oe, over the frequency range of 0.5 < f < 10(5) Hz. This circumferential-mode quasiring ME laminate can detect ac currents (noncontact) as small as 10(-7) A, and/or a vortex magnetic field as small as 6 x 10(-12) Tesla. In addition, we demonstrated current sensing capability of the quasiring laminate in a power electronics module. (c) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

共 25 条

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