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Stacked and folded piezoelectrets for vibration-based energy harvesting

机译:堆叠和折叠的压电驻极体,用于基于振动的能量收集

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摘要

Vibration-based energy harvesting with piezoelectrets can be significantly improved by using multiple layers of these materials. In particular, folding or stacking of piezoelectrets or a combination of these methods results in increased power output of the energy harvesters. The possibilities of these procedures are explored, together with the effect of seismic mass, resonance frequency, and terminating resistance. It is found that with seismic masses of about 20g and using radiation-crosslinked polypropylene (IXPP) as a piezoelectret, power outputs of up to 80 mu W can be achieved for an acceleration of 1 g. Expected dependencies of generated power on frequency, folding and stacking parameters, in particular number of layers, and on seismic mass, are confirmed.
机译:通过使用多层压电材料,可以大大改善压电驻极体基于振动的能量收集。特别地,压电驻极体的折叠或堆叠或这些方法的组合导致能量收集器的功率输出增加。探索了这些方法的可能性,以及地震质量,共振频率和终端电阻的影响。已经发现,在大约20g的地震质量下,使用辐射交联聚丙烯(IXPP)作为压电驻极体,对于1g的加速度,可以实现高达80μW的功率输出。确认了发电量对频率,折叠和堆叠参数(特别是层数)以及地震质量的预期依赖性。

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