Free-standing thick-film piezoelectric multimorph cantilevers for energy harvesting
Free-standing thick-film piezoelectric multimorph cantilevers for energy harvesting
Piezoelectric materials provide one approach for converting mechanical to electrical energy and can therefore be used to harvest energy from ambient vibration sources. Typically, piezoelectric materials are fabricated onto thin substrates, such as aluminum and stainless steel. These serve as mechanical support platforms to function as a cantilever beam structure. The platforms, however, are non-electro-active and they do not contribute directly to the electrical power output. The aim of this paper is to describe a novel multimorph cantilever structure in a free-standing form. Multimorphs consist of three laminar sections of lead zirconate titanate (PZT) of equal thickness 40 µm and length 18 mm were polarized in two modes; series and parallel. An optimum output power of 42 µW was measured when the series polarized sample was excited at its resonant frequency of 400 Hz.
Kok, Swee Leong
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White, Neil
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Harris, Nick
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Kok, Swee Leong
cd2530f7-f6db-4f6b-956e-906c5d559216
White, Neil
c7be4c26-e419-4e5c-9420-09fc02e2ac9c
Harris, Nick
237cfdbd-86e4-4025-869c-c85136f14dfd
Kok, Swee Leong, White, Neil and Harris, Nick
(2009)
Free-standing thick-film piezoelectric multimorph cantilevers for energy harvesting.
2009 IEEE International Ultrasonics Symposium, Roma, Italy.
20 - 23 Sep 2009.
(Submitted)
Record type:
Conference or Workshop Item
(Poster)
Abstract
Piezoelectric materials provide one approach for converting mechanical to electrical energy and can therefore be used to harvest energy from ambient vibration sources. Typically, piezoelectric materials are fabricated onto thin substrates, such as aluminum and stainless steel. These serve as mechanical support platforms to function as a cantilever beam structure. The platforms, however, are non-electro-active and they do not contribute directly to the electrical power output. The aim of this paper is to describe a novel multimorph cantilever structure in a free-standing form. Multimorphs consist of three laminar sections of lead zirconate titanate (PZT) of equal thickness 40 µm and length 18 mm were polarized in two modes; series and parallel. An optimum output power of 42 µW was measured when the series polarized sample was excited at its resonant frequency of 400 Hz.
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(1107)_Free-standing_thick-film_piezoelectric_multimorph_cantilevers_for_energy_harvesting.pdf
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Submitted date: 2009
Additional Information:
Event Dates: 20 - 23 September 2009
Venue - Dates:
2009 IEEE International Ultrasonics Symposium, Roma, Italy, 2009-09-20 - 2009-09-23
Organisations:
EEE
Identifiers
Local EPrints ID: 267652
URI: http://eprints.soton.ac.uk/id/eprint/267652
PURE UUID: 472ab475-f6c4-4779-bede-138a11472e33
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Date deposited: 06 Jul 2009 16:25
Last modified: 15 Mar 2024 02:46
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Contributors
Author:
Swee Leong Kok
Author:
Neil White
Author:
Nick Harris
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