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Free-standing thick-film piezoelectric multimorph cantilevers for energy harvesting

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
cd2530f7-f6db-4f6b-956e-906c5d559216
White, Neil
c7be4c26-e419-4e5c-9420-09fc02e2ac9c
Harris, Nick
237cfdbd-86e4-4025-869c-c85136f14dfd
Kok, Swee Leong
cd2530f7-f6db-4f6b-956e-906c5d559216
White, Neil
c7be4c26-e419-4e5c-9420-09fc02e2ac9c
Harris, Nick
237cfdbd-86e4-4025-869c-c85136f14dfd

(2009) Free-standing thick-film piezoelectric multimorph cantilevers for energy harvesting. 2009 IEEE International Ultrasonics Symposium, 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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More information

Submitted date: 2009
Additional Information: Event Dates: 20 - 23 September 2009
Venue - Dates: 2009 IEEE International Ultrasonics Symposium, 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
ORCID for Neil White: ORCID iD orcid.org/0000-0003-1532-6452
ORCID for Nick Harris: ORCID iD orcid.org/0000-0003-4122-2219

Catalogue record

Date deposited: 06 Jul 2009 16:25
Last modified: 04 Jul 2018 00:36

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