Commercial piezoelectric unimorph diaphragm as a magnetic energy harvester

被引：4
|
作者：
Guiffard, B. [1 ]
Guichon, Y. [1 ]
Gundel, H. W. [1 ]
机构：
[1] Univ Nantes, IETR UMR CNRS 6164, F-44322 Nantes 3, France
来源：
ELECTRONICS LETTERS | 2012年 / 48卷 / 19期
关键词：
D O I：
10.1049/el.2012.1971
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：
A magnetoelectric coupling in a low-cost and commercially available piezoelectric unimorph diaphragm is demonstrated by measuring magnetically induced AC voltage from the sample. Such a magnetoelectric effect could be achieved only because of the combination of magnetic forces within the electrodes and piezoelectric effect, without any magnetic constituent. Harvested magnetic power density across an optimal resistive load is found to be 0.12 mW/Oe.cm(3) at the bending mode resonance frequency. The proposed transduction mechanism opens new and simple ways for producing electricity from stray magnetic fields.
引用
收藏
页码：1196 / U45
页数：2
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