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dc.contributor.authorZhu, Yongen_US
dc.contributor.authorReza Moheimani, S.en_US
dc.contributor.authorYuce, Mehmet Rasiten_US
dc.date.accessioned2017-04-24T13:38:34Z
dc.date.available2017-04-24T13:38:34Z
dc.date.issued2011en_US
dc.date.modified2012-02-15T04:50:19Z
dc.identifier.issn1530437Xen_US
dc.identifier.doi10.1109/JSEN.2010.2053922en_US
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.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.languageEnglishen_US
dc.publisherIEEEen_US
dc.publisher.placeUnited Statesen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom155en_US
dc.relation.ispartofpageto161en_US
dc.relation.ispartofissue1en_US
dc.relation.ispartofjournalIEEE Sensors Journalen_US
dc.relation.ispartofvolume11en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchMicroelectromechanical Systems (MEMS)en_US
dc.subject.fieldofresearchMicroelectronics and Integrated Circuitsen_US
dc.subject.fieldofresearchcode091306en_US
dc.subject.fieldofresearchcode090604en_US
dc.titleA 2-DOF MEMS Ultrasonic Energy Harvesteren_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith School of Engineeringen_US
gro.date.issued2011
gro.hasfulltextNo Full Text


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