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dc.contributor.authorZhu, Yong
dc.contributor.authorMoheimani, SO Reza
dc.contributor.authorYuce, Mehmet Rasit
dc.date.accessioned2018-01-23T01:01:22Z
dc.date.available2018-01-23T01:01:22Z
dc.date.issued2011
dc.date.modified2012-02-15T04:50:19Z
dc.identifier.issn1530-437X
dc.identifier.doi10.1109/JSEN.2010.2053922
dc.identifier.urihttp://hdl.handle.net/10072/42706
dc.description.abstractThis paper reports a novel ultrasonic-based wireless power transmission technique that has the potential to drive implantable biosensors. Compared with commonly used radio-frequency (RF) radiation methods, the ultrasonic power transmission is relatively safe for the human body and does not cause electronic interference with other electronic circuits. To extract ambient kinetic energy with arbitrary in-plane motion directions, a novel 2-D MEMS power harvester has been designed with resonance frequencies of 38 520 and 38 725 Hz. Frequency-response characterization results verify that the device can extract energy from the directions of X, Y, and diagonals. Working in the diagonal direction, the device has a bandwidth of 302 Hz, which is twice wider than a comparable 1-D resonator device. A 1- uF storage capacitor is charged up from 0.51 to 0.95 V in 15 s, when the harvester is driven by an ultrasonic transducer at a distance of 0.5 cm in the X-direction, and is biased by 60 Vdc, indicating the energy harvesting capability of 21.4 nW in the X-direction. When excited along the Y-axis, the harvester has an energy-harvesting capacity of 22.7 nW. The harvester was modeled and simulated using an equivalent electrical circuit model in Saber, and the simulation results showed good agreement with the experimental results. The ultrasonic energy harvesting was also investigated using a 1-D piezoelectric micro-cantilever.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherIEEE
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom155
dc.relation.ispartofpageto161
dc.relation.ispartofissue1
dc.relation.ispartofjournalIEEE Sensors Journal
dc.relation.ispartofvolume11
dc.rights.retentionY
dc.subject.fieldofresearchMicroelectromechanical Systems (MEMS)
dc.subject.fieldofresearchMicroelectronics and Integrated Circuits
dc.subject.fieldofresearchOptical Physics
dc.subject.fieldofresearchElectrical and Electronic Engineering
dc.subject.fieldofresearchMechanical Engineering
dc.subject.fieldofresearchcode091306
dc.subject.fieldofresearchcode090604
dc.subject.fieldofresearchcode0205
dc.subject.fieldofresearchcode0906
dc.subject.fieldofresearchcode0913
dc.titleA 2-DOF MEMS Ultrasonic Energy Harvester
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Engineering
gro.date.issued2011
gro.hasfulltextNo Full Text
gro.griffith.authorZhu, Yong


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