Low-frequency magnetoelectric effect in a Galfenol-PZT planar composite structure
Low-frequency magnetoelectric effect in a Galfenol-PZT planar composite structure
复制标题
DOI：
10.1134/s1063784209090102
复制
发表时间：
2009-09-01
影响因子：
0.7
通讯作者：
Fetisov, L. Y.
中科院分区：
文献类型：
--
作者：
Bush, A. A.;Kamentsev, K. E.;Fetisov, L. Y.
在包含机械耦合 Galfenol 和 PZT 板的两层平面结构中对正向和反向磁电 (ME) 效应进行了实验研究。描述了多晶Galfenol板的生产过程及其磁和磁致伸缩特性。对于正向ME转换，测量结构产生的电压幅度对直流磁场的幅度和方向以及调制磁场的频率和幅度的依赖性。对于逆 ME 转换，测量结构磁感应强度变化幅度对直流磁场和施加到结构的交流电场频率的依赖性。正向和反向 ME 转换的效率是在低频场调制的情况下以及在结构中弯曲和纵向机械振动的共振激励条件下估计的。
The forward and inverse magnetoelectric (ME) effects are experimentally studied in a two-layer planar structure containing mechanically coupled Galfenol and PZT plates. The process of production of polycrystalline Galfenol plates and their magnetic and magnetostriction characteristics are described. For the forward ME conversion, the dependences of the amplitude of the voltage generated by the structure on the magnitude and orientation of a dc magnetic field and the frequency and amplitude of a modulating magnetic field are measured. For the inverse ME conversion, the dependences of the amplitude of the change in the magnetic induction of the structure on the dc magnetic field and the frequency of an ac electric field applied to the structure are measured. The efficiencies of the forward and inverse ME conversion are estimated for the case of low-frequency field modulation and under conditions of the resonance excitation of bending and longitudinal mechanical vibrations in the structure.