Multimodal system for harvesting magnetic and mechanical energy

Shuxiang Dong, Junyi Zhai, J. F. Li, D. Viehland, S. Priya

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158 Scopus citations


In this letter, we investigate a multimodal system for simultaneous energy harvesting from stray magnetic and mechanical energies by combining magnetoelectric and piezoelectric effects. The system consists of a cantilever beam with tip mass and a magnetoelectric laminate attached in the center of the beam. At 2 Oe magnetic field and mechanical vibration amplitude of 50mg, both at frequency of 20 Hz, the system was found to generate open circuit output voltage of 8 VP.P. An equivalent circuit model is proposed that predicts a summation effect for both mechanical and magnetic energies.

Original languageEnglish (US)
Article number103511
JournalApplied Physics Letters
Issue number10
StatePublished - 2008
Externally publishedYes

Bibliographical note

Funding Information:
The authors gratefully acknowledge the support from ONR.


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