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Abstract

In a companion article, a model for a clamped circular unimorph piezoelectric plate has been developed for the purpose of analyzing the influence of geometric design parameters and electrode configuration on the amount of electrical energy that can be harvested from an applied pressure source. It has been shown that the ratio of layer thickness (piezoelectric layer to substrate layer) and electrode pattern have a significant effect on energy conversion for harvesting. Specifically, the theoretical analysis shows that regrouping of the electrodes (i.e., segmenting the electrode into a specific pattern) can lead to optimized energy harvesting in a clamped circular plate structure. This article provides experimental validation of these results. In this article, three circular plate piezoelectric energy generators (PEGs), one unmodified and two regrouped unimorph PEGs, were used to support the analysis.

Keywords

piezoelectric patterned poling PZT PEG unimorph

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References

Goldfarb, M. and Jones, L.D. 1999. ‘On the Efficiency of Electric Power Generation with Piezoelectric Ceramic,’ Journal of Dynamic Systems, Measurement, and Control, 121(3): 566–671 .

Kim, S. , Clark, W.W. and Wang, Q.-M. 2005. ‘Piezoelectric Energy Harvesting with a Clamped Circular Plate: Analysis,’ Journal of Intelligent Material Systems and Structures, 16(10): 847–854 .

Kymissis, J. , Kendall, C. , Paradiso, J. and Gershenfeld, N. 1998. ‘Parasitic Power Harvesting in Shoes,’ In: Digest of Papers. Second International Symposium on Wearable Computers, pp. 132–139 .

Mandurino, P. , Bianc, G.B. and Garbin, R. 2001. ‘Energy Recovering PZT-Panel for Noise Reduction: Numerical Analysis for Fully Coupled Fluid-PZT Structure-Electric Interaction, Experimental Verification,’ In: SPIE 8th Annual International Symposium on Smart Materials and Structures, Newport Beach, CA.

Schmidt, V.H. 1992. ‘Piezoelectric Energy Conversion in Windmills,’ In: Proceedings of the IEEE Ultrasonics Symposium, pp. 897–904.

Shenck, N. 1998. ‘A Demonstration of Useful Electric Energy Generation from Piezoceramics in a Shoe,’ MS Thesis, Massachusetts Institute of Technology.

Xu, C. , Akiyama, M. , Nonaka, K. , Shobu, K. and Watanabe, T. 1996. ‘Electrical Output Performance of PZT-Based Piezoelectric Ceramics,’ In: IEEE International Symposium on Applications of Ferroelectrics, Vol. 2, pp. 967–970 .

Xu, C.-N. , Akiyama, M. , Nonaka, K. and Watanabe, T. 1998. ‘Electrical Power Generation Characteristics of PZT Piezoelectric Ceramics,’ IEEE Trans. Ultrason, 45(4): 1065–1998 .

Piezoelectric Energy Harvesting with a Clamped Circular Plate: Experimental Study

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