Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.proeng.2011.12.179
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dc.titleInvestigation of piezoelectric MEMS-based wideband energy harvesting system with assembled frequency-up-conversion mechanism
dc.contributor.authorLiu, H.
dc.contributor.authorLee, C.
dc.contributor.authorKobayashi, T.
dc.contributor.authorTay, C.J.
dc.contributor.authorQuan, C.
dc.date.accessioned2014-06-19T03:15:01Z
dc.date.available2014-06-19T03:15:01Z
dc.date.issued2011
dc.identifier.citationLiu, H., Lee, C., Kobayashi, T., Tay, C.J., Quan, C. (2011). Investigation of piezoelectric MEMS-based wideband energy harvesting system with assembled frequency-up-conversion mechanism. Procedia Engineering 25 : 725-728. ScholarBank@NUS Repository. https://doi.org/10.1016/j.proeng.2011.12.179
dc.identifier.issn18777058
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/70684
dc.description.abstractA MEMS-based piezoelectric energy harvesting (PiezoEH) system is proposed and investigated not only with a wideband and steadily increased output voltage ranging from 50mV at 30Hz to 102mV at 52Hz, but also with the capability of converting random and low-frequency vibrations into high-frequency self-oscillations. The PiezoEH system consists of a bottom PZT cantilever (PZT-B) with low resonant frequency of 36Hz and a top PZT cantilever (PZT-T) with high resonant frequency of 618Hz packaged closely. By incorporating PZT-T and package base as top and bottom mechanical stoppers, the vibration amplitude of PZT-B is suppressed but the operation bandwidth is broadened to 22Hz nearby its resonant frequency of 36Hz. Meanwhile, the PZT-T is triggered and self-oscillated at 618Hz due to impact caused by PZT-B in each vibration swing of PZT-B. The maximum output voltage and power are 101mV and 0.011μW for the PZT-B, and are 11 1mV and 0.019μW for the PZT-T, respectively. © 2011 Published by Elsevier Ltd.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.proeng.2011.12.179
dc.sourceScopus
dc.subjectFrequency-up-conversion (FUC)
dc.subjectMicro-electro-mechanical systems (MEMS)
dc.subjectPeizoelectric energy harvesting (PiezoEH)
dc.subjectPZT cantilever
dc.subjectWideband
dc.typeConference Paper
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.proeng.2011.12.179
dc.description.sourcetitleProcedia Engineering
dc.description.volume25
dc.description.page725-728
dc.identifier.isiut000300512400176
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