Review of magnetostrictive vibration energy harvesters

The field of energy harvesting has grown concurrently with the rapid development of portable and wireless electronics in which reliable and long-lasting power sources are required. Electrochemical batteries have a limited lifespan and require periodic recharging. In contrast, vibration energy harves...

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Bibliographic Details
Published inSmart materials and structures Vol. 26; no. 10; pp. 103001 - 103018
Main Authors Deng, Zhangxian, Dapino, Marcelo J
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.10.2017
Subjects
design
energy harvester
magnetostrictive materials
modeling
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Summary:The field of energy harvesting has grown concurrently with the rapid development of portable and wireless electronics in which reliable and long-lasting power sources are required. Electrochemical batteries have a limited lifespan and require periodic recharging. In contrast, vibration energy harvesters can supply uninterrupted power by scavenging useful electrical energy from ambient structural vibrations. This article reviews the current state of vibration energy harvesters based on magnetostrictive materials, especially Terfenol-D and Galfenol. Existing magnetostrictive harvester designs are compared in terms of various performance metrics. Advanced techniques that can reduce device size and improve performance are presented. Models for magnetostrictive devices are summarized to guide future harvester designs.
Bibliography:SMS-104997.R1
ISSN:0964-1726
1361-665X
DOI:10.1088/1361-665X/aa8347