A Thick-film Piezoelectric Multimorph Cantilever
Free-standing thick-film cantilevers have the potential to be used as micro-generators as well as self-generating resonant sensors. Earlier versions of free-standing devices were implemented by fabricating in the form of multilayer structures. Instead of structures with a plate of PZT sandwiched bet...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2009
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| Online Access: | http://eprints.utem.edu.my/id/eprint/4373/ http://eprints.utem.edu.my/id/eprint/4373/1/Dielectrics_2009.pdf |
| _version_ | 1848887025082564608 |
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| author | Kok, Swee Leong White, Neil Harris, Nick |
| author_facet | Kok, Swee Leong White, Neil Harris, Nick |
| author_sort | Kok, Swee Leong |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | Free-standing thick-film cantilevers have the potential to be used as micro-generators as well as self-generating resonant sensors. Earlier versions of free-standing devices were implemented by fabricating in the form of multilayer structures. Instead of structures with a plate of PZT sandwiched between upper and lower electrodes, multimorph structures consist of three individual PZT plates having equal thicknesses (of about 40 m each). Ag/Pd conductors form the separators between the layers, also acting as electrodes on the upper and lower layers of the structure. Each piezoelectric plate was polarised in its thickness direction with two different modes: parallel and series. In the parallel mode, both the upper and lower PZT plates were polarised in the opposite direction, while in the series mode the upper plates and the lower plates were polarised in the same direction. The centre plate of PZT acts as the neutral axis of the structure. Using the direct piezoelectric effect, a voltage was generated when the multimorph structures were bent by the application of a harmonic excitation. An output power of 10 W was measured for the parallel polarised sample. Series multimorphs, however, exhibited a non-linear effect, where the output power was 21 W for an up-sweeping frequency, but was reduced by a factor of 50 for a down-sweeping frequency. |
| first_indexed | 2025-11-15T19:47:49Z |
| format | Conference or Workshop Item |
| id | utem-4373 |
| institution | Universiti Teknikal Malaysia Melaka |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T19:47:49Z |
| publishDate | 2009 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utem-43732015-05-28T02:41:30Z http://eprints.utem.edu.my/id/eprint/4373/ A Thick-film Piezoelectric Multimorph Cantilever Kok, Swee Leong White, Neil Harris, Nick TK Electrical engineering. Electronics Nuclear engineering Free-standing thick-film cantilevers have the potential to be used as micro-generators as well as self-generating resonant sensors. Earlier versions of free-standing devices were implemented by fabricating in the form of multilayer structures. Instead of structures with a plate of PZT sandwiched between upper and lower electrodes, multimorph structures consist of three individual PZT plates having equal thicknesses (of about 40 m each). Ag/Pd conductors form the separators between the layers, also acting as electrodes on the upper and lower layers of the structure. Each piezoelectric plate was polarised in its thickness direction with two different modes: parallel and series. In the parallel mode, both the upper and lower PZT plates were polarised in the opposite direction, while in the series mode the upper plates and the lower plates were polarised in the same direction. The centre plate of PZT acts as the neutral axis of the structure. Using the direct piezoelectric effect, a voltage was generated when the multimorph structures were bent by the application of a harmonic excitation. An output power of 10 W was measured for the parallel polarised sample. Series multimorphs, however, exhibited a non-linear effect, where the output power was 21 W for an up-sweeping frequency, but was reduced by a factor of 50 for a down-sweeping frequency. 2009 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utem.edu.my/id/eprint/4373/1/Dielectrics_2009.pdf Kok, Swee Leong and White, Neil and Harris, Nick (2009) A Thick-film Piezoelectric Multimorph Cantilever. In: Dielectrics 2009, 15 - 17 April 2009, University of Reading, UK. http://www.mendeley.com/research/thickfilm-piezoelectric-multimorph-cantilever/ |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Kok, Swee Leong White, Neil Harris, Nick A Thick-film Piezoelectric Multimorph Cantilever |
| title | A Thick-film Piezoelectric Multimorph Cantilever |
| title_full | A Thick-film Piezoelectric Multimorph Cantilever |
| title_fullStr | A Thick-film Piezoelectric Multimorph Cantilever |
| title_full_unstemmed | A Thick-film Piezoelectric Multimorph Cantilever |
| title_short | A Thick-film Piezoelectric Multimorph Cantilever |
| title_sort | thick-film piezoelectric multimorph cantilever |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.utem.edu.my/id/eprint/4373/ http://eprints.utem.edu.my/id/eprint/4373/ http://eprints.utem.edu.my/id/eprint/4373/1/Dielectrics_2009.pdf |