Design and analysis of a self-biased broadband magnetoelectric cantilever operated at multi-frequency windows

Design and analysis of a self-biased broadband magnetoelectric cantilever operated at multi-frequency windows
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多频窗口自偏置宽带磁电悬臂梁的设计与分析

DOI：
10.1063/1.4978872
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发表时间：
2017-03
期刊：
AIP ADVANCES
影响因子：
1.6
通讯作者：
Nan C. W.
Nan C. W.
中科院分区：
材料科学4区
文献类型：
--
作者：
Ma J. N.;Xin C. Z.;Ma J.;Lin Y. H.;Nan C. W.

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具有自偏置和宽共振频带特性的磁电复合材料是磁场传感器和能量收集器的理想选择。在这里，我们提出了通过串联几个SrFe12O19/ metglass /Pb(Zr,Ti)O3组分的ME悬臂梁。由于SrFe12O19的固有偏磁，ME悬臂梁表现出自偏磁特性。同时，通过将串联ME组件的共振响应合并在一起，ME悬臂梁呈现出多宽的共振带（即500 Hz ~ 700 Hz， 3.3 kHz ~ 4.4 kHz和44 kHz ~ 70 kHz）。在这三个宽频率窗内，ME悬臂梁的ME电压系数（αV）分别大于40 mV/Oe、115 mV/Oe和400 mV/Oe。
Magnetoelectric (ME) composites with self-biased and wide resonance frequency band properties are promising candidates for magnetic field sensor and energy harvester. Here, we present a ME cantilever by in-series connecting a few SrFe12O19/Metglas/Pb(Zr,Ti)O3 components. Due to the in-built magnetic bias of SrFe12O19, the ME cantilever shows self-biased property. Meanwhile, by merging the resonance responses of the in-series ME components together, the ME cantilever presents multi-wide resonance bands (i.e., 500 Hz ∼ 700 Hz, 3.3 kHz ∼ 4.4 kHz and 44 kHz ∼ 70 kHz). In these three wide frequency windows, the ME voltage coefficients (αV) of the ME cantilever are higher than 40 mV/Oe, 115 mV/Oe and 400 mV/Oe, respectively.
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