Right-angle piezoelectric cantilever with improved energy harvesting efficiency

被引：48

作者：

Xu, Jia Wen ^{[1
]}

Shao, Wei Wei ^{[1
]}

Kong, Fan Rang ^{[1
]}

Feng, Zhi Hua ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Precis Machinery & Precis Instrumentat, Hefei 230026, Anhui, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 15期

关键词：

cantilevers; energy harvesting; piezoelectric devices;

D O I：

10.1063/1.3374880

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper reports a piezoelectric device based on a cantilever with an extended auxiliary part that forms a right angle with the basic part. Theoretical analyses and experiments support that, by using such a device, uniform strain distribution in piezoelectric element surfaces can be obtained, and thus the piezoelectric materials can be used more efficiently. A piezoelectric element on a right-angle cantilever can generate a useful power twice that of a traditional cantilever under the same strain limitation.

引用

页数：3

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