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Title: Electromagnetic energy harvesting from vibrations of multiple frequencies
Authors: Yang, B.
Lee, C. 
Xiang, W. 
Xie, J.
Han He, J.
Kotlanka, R.K.
Low, S.P.
Feng, H.
Issue Date: 2009
Citation: Yang, B., Lee, C., Xiang, W., Xie, J., Han He, J., Kotlanka, R.K., Low, S.P., Feng, H. (2009). Electromagnetic energy harvesting from vibrations of multiple frequencies. Journal of Micromechanics and Microengineering 19 (3) : -. ScholarBank@NUS Repository.
Abstract: A novel multi-frequency energy harvester has been designed and fabricated, which consists of three permanent magnets, three sets of two-layer copper coils and a supported beam of acrylic, while these coils are made of thin fire resistant 4 (FR4) substrates using a standard printed circuit board. The energy under the first, second and third resonant modes can be harvested, corresponding to the resonant frequencies of 369 Hz, 938 Hz and 1184 Hz, respectively. The maximum output voltage and power of the first and second vibration modes are 1.38 mV, 0.6 νW and 3.2 mV, 3.2 νW for a 14 νm exciting vibration amplitude and a 0.4 mm gap between the magnet and coils, respectively. The feasibility study results are in good agreement with the theoretical calculations and show promising application potentials. © 2009 IOP Publishing Ltd.
Source Title: Journal of Micromechanics and Microengineering
ISSN: 09601317
DOI: 10.1088/0960-1317/19/3/035001
Appears in Collections:Staff Publications

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