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首页> 外文期刊>AIP Advances >Effect of magnetic-field orientation on dual-peak phenomenon of magnetoelectric coupling in Ni/PZT/Terfenol-D composites
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Effect of magnetic-field orientation on dual-peak phenomenon of magnetoelectric coupling in Ni/PZT/Terfenol-D composites

机译：磁场取向对Ni / PZT / Terfenol-D复合材料中磁电耦合双峰现象的影响

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摘要

Magnetoelectric (ME) effect in a Ni/PZT/Terfenol-D composite cantilever was tested under three different magnetic loading modes. The frequency-dependent ME effect and dual-peak phenomenon were observed in the experiment. The influence of orientations of magnetic fields on the dual-peak phenomenon of ME coupling was investigated. Magnetic field distribution inside the ME composite structure was simulated, which agrees well with experimental data. The experiment results indicate that ME coefficient versus bias magnetic field curve presents a novel dual-peak phenomenon near the resonant frequency, and the ME coefficient which depends upon the amplitude and orientation of magnetic field presents a nonlinear shift whether at the resonant frequency or not. In addition, the optimal angle corresponding to the largest ME coefficient for different bias fields were obtained. The proposed ME composites-based sensors can be used for detecting or harvesting magnetic signals of uncertain orientations and amplitudes in complex environments.
机译：在三种不同的磁性负载模式下测试Ni / PZT / Terfenol-D复合悬臂中的磁电（ME）效应。在实验中观察到频率依赖性ME效果和双峰现象。研究了磁场取向对我偶联耦合的双峰现象的影响。模拟ME复合结构内的磁场分布，其与实验数据很好。实验结果表明ME系数与偏置磁场曲线呈现出谐振频率附近的新型双峰现象，并且我的系数取决于磁场的幅度和取向呈现在谐振频率上的非线性偏移。另外，获得了与不同偏置场的最大ME系数对应的最佳角度。所提出的基于组合材料的传感器可用于检测或收获复杂环境中不确定方向和幅度的磁信号。

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