Improving Power Density of a Cantilever Piezoelectric Power Harvester Through a Curved L-Shaped Proof Mass

被引：90

作者：

Li, Wen G. ^{[1
]}

He, Siyuan ^{[1
]}

Yu, Shudong ^{[1
]}

机构：

[1] Ryerson Univ, Dept Mech & Ind Engn, Toronto, ON M5B 2K3, Canada

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2010年 / 57卷 / 03期

关键词：

Curved L-shaped mass; piezoelectric power harvesting; walking energy scavenging; ENERGY; GENERATOR;

D O I：

10.1109/TIE.2009.2030761

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents a cantilever piezoelectric power harvester with a curved L-shaped proof mass. With this novel proof mass, a lower fundamental frequency and a higher power density (output power per unit volume) were achieved. Three prototypes of 0.242 cm(3) in volume were fabricated and tested. A power density of 1.45 mW/cm(3) was achieved for the sinusoidal excitation of 0.75 g. The power harvester was also tested on a shoe at various walking speeds, and it generated an average power of 49 mu W at 3.0 mi/h.

引用

页码：868 / 876

页数：9

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