Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/423
Title: Energy harvesting with piezoelectric drum transducer
Authors: Wang, S
Lam, KH
Sun, C
Kwok, KW 
Chan, HLW 
Guo, M
Zhao, X
Keywords: Piezoelectric transducers
Vibrations
Issue Date: 12-Mar-2007
Publisher: American Institute of Physics
Source: Applied physics letters, 12 Mar. 2007, v. 90, 113506, p. 1-3 How to cite?
Journal: Applied physics letters 
Abstract: Piezoelectric materials can convert ambient vibrations into electrical energy. In this letter, the capability of harvesting the electrical energy from mechanical vibrations in a dynamic environment through a piezoelectric drum transducer has been investigated. Under a prestress of 0.15 N and a cyclic stress of 0.7 N, a power of 11 mW was generated at the resonance frequency of the transducer (590 Hz) across an 18 kΩ resistor. It is found that the energy from the transducer increases while the resonance frequency of the transducer decreases when the prestress increases. The results demonstrate the potential of the drum transducer in energy harvesting.
URI: http://hdl.handle.net/10397/423
ISSN: 0003-6951
Rights: © 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in S. Wang et al., Appl. Phys. Lett. 90, 113506 (2007) and may be found at http://link.aip.org/link/?apl/90/113506.
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