OMNIDIRECTIONAL POLYHEDRAL ULTRASOUND TRANSDUCER FOR POWERING IMPLANTABLE MICRODEVICES
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Islam, Sayemul | - |
dc.contributor.author | Park, Moonchul | - |
dc.contributor.author | Song, Seung Hyun | - |
dc.contributor.author | Kim, Albert | - |
dc.date.accessioned | 2022-04-19T08:54:10Z | - |
dc.date.available | 2022-04-19T08:54:10Z | - |
dc.date.issued | 2021-06 | - |
dc.identifier.issn | 2167-0013 | - |
dc.identifier.issn | 2167-0021 | - |
dc.identifier.uri | https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/146173 | - |
dc.description.abstract | Ultrasonic powering is an emerging power source for implantable microdevices due to its superior efficiency in energy transfer at millimeter-scale, long operation distance, and near omnidirectionality. In this paper, we investigate a novel polyhedral ultrasound transducer with emphasis on angular alignment between piezoelectric poling vector and incident waves. Three different polyhedrons (i.e., sphere, octahedron, and dodecahedron) are fabricated via 3D printing lead-free barium titanate ceramic. The maximum output voltage for a unit area occurred at 0 degrees when the poling and waves direction aligned, which were measured to be 0.677 +/- 0.071, 1.058 +/- 0.049, and 0.709 +/- 0.092 V, respectively. At the extreme angular misalignment at 90 degrees (poling and waves perpendicular to each other), only the dodecahedron could sustain the voltage output with 21% reduction, whereas sphere and octahedron dropped by 46%. The results imply that the geometry factor may overcome the poling vector, enabling omnidirectional ultrasonic powering for implantable microdevices. | - |
dc.format.extent | 4 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | IEEE | - |
dc.title | OMNIDIRECTIONAL POLYHEDRAL ULTRASOUND TRANSDUCER FOR POWERING IMPLANTABLE MICRODEVICES | - |
dc.type | Article | - |
dc.publisher.location | 미국 | - |
dc.identifier.doi | 10.1109/TRANSDUCERS50396.2021.9495556 | - |
dc.identifier.scopusid | 2-s2.0-85114962100 | - |
dc.identifier.bibliographicCitation | 2021 21ST INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS (TRANSDUCERS), pp 1404 - 1407 | - |
dc.citation.title | 2021 21ST INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS (TRANSDUCERS) | - |
dc.citation.startPage | 1404 | - |
dc.citation.endPage | 1407 | - |
dc.type.docType | Proceedings Paper | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Ultrasonic powering | - |
dc.subject.keywordAuthor | barium titanate | - |
dc.subject.keywordAuthor | piezoelectric | - |
dc.subject.keywordAuthor | omnidirectional | - |
dc.subject.keywordAuthor | wireless powering | - |
dc.subject.keywordAuthor | implantable | - |
dc.subject.keywordAuthor | microdevice | - |
dc.identifier.url | https://ieeexplore.ieee.org/document/9495556 | - |
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