An electromagnetic, vibration-powered generator for intelligent sensor systems

被引：578

作者：

Glynne-Jones, P ^{[1
]}

Tudor, MJ ^{[1
]}

Beeby, SP ^{[1
]}

White, NM ^{[1
]}

机构：

[1] Univ Southampton, Dept Elect & Comp Sci, Southampton SO17 1BJ, Hants, England

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2004年 / 110卷 / 1-3期

基金：

英国工程与自然科学研究理事会;

关键词：

microgenerator; energy harvesting; parasitic power source;

D O I：

10.1016/j.sna.2003.09.045

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 describes the design of miniature generators capable of converting ambient vibration energy into electrical energy for use in powering intelligent sensor systems. Such a device acts as the power supply of a microsystem which can be used in inaccessible areas where wires can not be practically attached to provide power or transmit sensor data. Two prototypes of miniature generator are described and experimental results presented. Prototype A is based around two magnets coupled to a coil attached to a cantilever; prototype B is based around four magnets. For prototype A, experimental results are given for its resonant frequency and its open circuit and loaded output as a function of vibration amplitude. For prototype B, experimental results are given for the generator's Q factor in air and vacuum, its output voltage as a function of vibration amplitude as well as its magnetic field strength. This generator has been tested on a car engine and shown to produce a peak power of 3.9 mW with an average power of 157 muW. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：344 / 349

页数：6

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