ELECTROMAGNETIC ENERGY HARVESTER WITH AN IN-PHASE VIBRATION BANDWIDTH BROADENING TECHNIQUE

被引：0

作者：

Chen, Shih-Jui ^{[1
]}

Wu, Jia-Yin ^{[1
]}

Liu, Shu-Yu ^{[1
]}

机构：

[1] Natl Cent Univ, Dept Mech Engn, Taoyuan, Taiwan

来源：

2014 IEEE 27TH INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS (MEMS) | 2014年

关键词：

MICRO POWER GENERATOR; ENVIRONMENTAL VIBRATIONS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper reports a duo-mode vibration structure for increasing usable bandwidth in a micromachined electromagnetic energy harvester. The energy harvester is characterized by using finite element analysis on the vibration frequency and amplitude. Since a spiral diaphragm is much more flexible than a cantilever diaphragm for a given size, a spiral is inserted in to a U-shape cantilever, forming the proposed energy harvester. By designing the coupled structure, not only the resonance frequency is reduced, but also the usable bandwidth is broadened. Experimental results show that the device generates electromotive force of 1.00 and 1.03 mV, 7.66 and 7.43 nW (into 27 Omega load) at two resonance frequencies at 211 and 274 Hz, respectively.

引用

页码：382 / 384

页数：3

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