Journal
APPLIED PHYSICS LETTERS
Volume 103, Issue 24, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4847755
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Funding
- National Natural Science Foundation of China [61174017]
- National High Technology Research and Development Program of China [2012AA040602]
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In this study, a magnetoelectric vibration energy harvester was demonstrated, which aims at addressing the limitations of the existing approaches in single dimensional operation with narrow working bandwidth. A circular cross-section cantilever rod, not a conventional thin cantilever beam, was adopted to extract vibration energy in arbitrary in-plane motion directions. The magnetic interaction not only resulted in a nonlinear motion of the rod with increased frequency bandwidth, but also contributed to a multi-mode motion to exhibit double power peaks. In energy harvesting with in-plane directions, it showed a maximum bandwidth of 4.4 Hz and power of 0.59 mW, with acceleration of 0.6 g (with g = 9.8 ms(-2)). (C) 2013 AIP Publishing LLC.
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