Vibration-based energy harvesting with stacked piezoelectrets
Vibration-based energy harvesting with stacked piezoelectrets
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DOI：
10.1063/1.4874305
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发表时间：
2014-04-28
影响因子：
4
通讯作者：
Melz, T.
中科院分区：
文献类型：
--
作者：
Pondrom, P.;Hillenbrand, J.;Melz, T.
提出了具有多层压电驻极体（铁电驻极体）的基于振动的能量采集器。使用一个简单的设置与9层和一个8克的地震质量，它是可能的，以产生高达1.3 μ W的功率在140赫兹与输入加速度为1克。在震动质量块和压电驻极体之间具有更好的耦合并且因此减小阻尼的情况下，单层系统的功率输出在700 Hz下增加到5 μ W。模拟表明，对于这种具有10层堆叠的改进设置，利用80 g的地震质量，预计100 Hz以下的功率水平为0.1至1 mW。(C)2014 AIP Publishing LLC.
Vibration-based energy harvesters with multi-layer piezoelectrets (ferroelectrets) are presented. Using a simple setup with nine layers and a seismic mass of 8 g, it is possible to generate a power up to 1.3 mu W at 140 Hz with an input acceleration of 1g. With better coupling between seismic mass and piezoelectret, and thus reduced damping, the power output of a single-layer system is increased to 5 mu W at 700 Hz. Simulations indicate that for such improved setups with 10-layer stacks, utilizing seismic masses of 80 g, power levels of 0.1 to 1 mW can be expected below 100 Hz. (C) 2014 AIP Publishing LLC.