A broadband electromagnetic energy harvester with a coupled bistable structure

This paper investigates a broadband electromagnetic energy harvester with a coupled bistable structure. Both analytical model and experimental results showed that the coupled bistable structure requires lower excitation force to trigger bistable operation than conventional bistable structures. A com...

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Bibliographic Details
Published in:Journal of physics. Conference series 2013-01, Vol.476 (1), p.12070-5
Main Authors: Zhu, D, Beeby, S P
Format: Article
Language:English
Subjects:
Amplitudes
Broadband
Energy harvesting
Excitation
Joining
Mathematical analysis
Physics
Vibration
White noise
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Summary:This paper investigates a broadband electromagnetic energy harvester with a coupled bistable structure. Both analytical model and experimental results showed that the coupled bistable structure requires lower excitation force to trigger bistable operation than conventional bistable structures. A compact electromagnetic vibration energy harvester with a coupled bistable structure was implemented and tested. It was excited under white noise vibrations. Experimental results showed that the coupled bistable energy harvester can achieve bistable operation with lower excitation amplitude and generate more output power than both conventional bistable and linear energy harvesters under white noise excitation.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/476/1/012070