Study of the Electrode Length of Cantilever on Electrical Characteristics of Piezoelectric Energy Harvesting

被引：0
|
作者：
Bai F.-X. [1 ]
Ma H.-Q. [1 ]
Sun J.-Z. [1 ]
Dong W.-J. [1 ]
Zhang M.-J. [1 ]
机构：
[1] College of Electrical Engineering, Dalian University of Technology, Dalian, 116023, Liaoning
来源：
Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2019年 / 47卷 / 11期
关键词：
Electrical characteristics; Electrode length; Energy harvesting; Piezoelectric cantilever beam;
D O I：
10.3969/j.issn.0372-2112.2019.11.003
中图分类号：
学科分类号：
摘要：
The length of the cantilever beam electrode is one of the important factors affecting the characteristics of piezoelectric vibration energy harvesting.The energy distribution function was proposed to describe the relationship between electric field energy and electrode ratio during the vibration energy harvesting, and the nature of the effect of electrode ratio on electrical characteristics was also explored.It is pointed out that the optimal electrode ratio of the rectangular and triangular cantilever beams to obtain the maximum power is between 50%~60%.In addition, the charge is redistributed with energy loss during vibration energy harvesting, and the energy loss is lowest at the optimal electrode and greater when the electrode ratio reaches 100%.Both the simulation and experiment results show that the optimal electrode ratio of the rectangular and triangular cantilever beams is in accordance with the optimal value obtained by the energy distribution function, and it is feasible to increase the output power by optimizing the electrode-length. © 2019, Chinese Institute of Electronics. All right reserved.
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页码：2256 / 2262
页数：6
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