Circumferential-mode, quasi-ring-type, manetoelectric laminate composite - a highly sensitive electric current and/or vortex magnetic field sensor
Circumferential-mode, quasi-ring-type, manetoelectric laminate composite - a highly sensitive electric current and/or vortex magnetic field sensor
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DOI：
10.1063/1.1923184
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发表时间：
2005-05-02
影响因子：
4
通讯作者：
Shrout, TR
中科院分区：
文献类型：
--
作者：
Dong, SX;Bai, JG;Shrout, TR
研究了一种准环型磁电（ME）叠层复合材料，该材料由周向极化的Pb（Zn 1/3 Nb 2/3 O）（3-）4.5at.%制备了PbTiO（3）单晶环和两个周向磁化的磁致伸缩TERFENOL-D环，在0.5 < f < 10（5）Hz的频率范围内，磁致伸缩电压系数为2.2V/Oe，相当于磁致伸缩场系数为5.5V/cm Oe。这种周向模式准环ME层压板可以检测小至10（-7）A的交流电流（非接触式）和/或小至6 × 10（-12）特斯拉的涡流磁场。此外，我们证明了电流传感能力的准环层压板在电力电子模块。(c)2005年美国物理学会。
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.