一种提高压电发电机频率响应的友好方法

2013 IEEE XXXIII International Scientific Conference Electronics and Nanotechnology (ELNANO) Pub Date : 2013-04-16 DOI:10.1109/ELNANO.2013.6551994

S. Ben-Yaakov, Gil Hadar, Amit Shainkopf, N. Krihely

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引用次数: 1

摘要

构建了一种宽带压电发生器，并进行了实验测试。利用啁啾和宽带随机激励对PZG进行了表征。实验结果表明，与传统的悬臂式PZG结构相比，通过适当的附加悬臂梁的形状可以增加PZG的振动模式数量，从而提高能量收集的效率。该结构被设计为产生3种振动模式，在35Hz、57Hz和76Hz的频率范围内扩展运行。结果，与传统收割机相比，带宽拓宽了2.81倍。

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A friendly approach to increasing the frequency response of piezoelectric generators

A wide bandwidth piezoelectric generator (PZG) was constructed and tested experimentally. The PZG was characterized using chirp and wideband random excitations. The experimental results showed that by proper shaping of an attached cantilever beam it is possible to increase the number of vibration modes of the PZG and, hence, to improve the effectiveness of the energy harvesting as compared with a conventional cantilever PZG configuration. The proposed structure was designed to produce 3 vibration modes, which extend the operation around the frequencies 35Hz, 57Hz and 76Hz. As a result, the bandwidth was widened by a factor of 2.81 as compared with a conventional harvester.

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2013 IEEE XXXIII International Scientific Conference Electronics and Nanotechnology (ELNANO)

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