期刊
JOURNAL OF APPLIED PHYSICS
卷 111, 期 7, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3677771
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资金
- National Natural Science Foundation of China [50830202, 61071042]
- Fundamental Research Funds for the Central Universities [CDJXS11122223]
Scavenging electromagnetic and vibration energy from environments is an attractive technique for powering wireless sensors in a wireless sensor network. This paper reports our design and testing results on the electric output performance of a piezoelectric energy harvesting device, which consists of cantilever beams, magnetoelectric (ME) transducers, and permanent magnets. The geometric parameters of the device are based on an optimization design with a targeted resonant frequency of 50 Hz. Experimental results show that an output voltage of 56.1 V and an average power of 0.24 mW are achieved responding to a current of 3 A at 50 Hz. Remarkably, this power is a very encouraging power figure that gives the prospect of being able to power a wide range of wireless sensors in an electric line monitoring system. (C) 2012 American Institute of Physics. [doi:10.1063/1.3677771]
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