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dc.contributor.author윤종헌-
dc.date.accessioned2023-01-04T02:31:42Z-
dc.date.available2023-01-04T02:31:42Z-
dc.date.issued2020-02-
dc.identifier.citationJournal of the Korean Society for Precision Engineering, v. 37, NO. 2, Page. 125-131-
dc.identifier.issn1225-9071;2287-8769-
dc.identifier.urihttps://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE09298554&language=ko_KR&hasTopBanner=trueen_US
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/178782-
dc.description.abstractRecently, applying nanoscale functional materials, there have been great advances in the flexible sensor system, which provides a large number of applications for soft electronics, such as skin-attachable sensors, artificial electronic skins, and soft robotic systems. Here, we developed a highly sensitive and flexible device on the basis of polymeric piezoelectric nanofibers and elastomeric packing structures. To produce the nanofibers, we applied the electrospinning process with a representative piezoelectric co-polymer, poly (vinylidenefluoride-co-trifluoroethylene) (PVDF-TrFE). Unlike the conventional electrospinning, we applied an anisotropic fiber collection system, which could obtain uniaxially aligned nanofiber array. The aligned nanofibers were sandwich-packed with bridge-shaped PDMS substrates, thereby integrating the flexible piezoelectric sensor. As an external force made a deflection of the bridge in the sensor, the embedded nanofibers generated piezoelectricity in a longitudinal direction of the fibers. The piezoelectric sensor generated good discernable outputs versus the varied mechanical input deflection from tens of micrometers to the sub-micrometer. With this great sensing ability, we could monitor heart pulse signals on the wrist skin by measuring tiny deflections generated from the expansion of the radial artery underneath the skin. Our study suggests a potential application of flexible sensor in the field of wearable health-monitoring medical systems. © The Korean Society for Precision Engineering This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.-
dc.languageko-
dc.publisher한국정밀공학회지-
dc.subjectlexible electronics (유연전자기기)-
dc.subjectBiosignal monitoring system (생체 신호 모니터링 시스템)-
dc.subjectElectrospun nanofiber (전기 방사 나노섬유)-
dc.subjectPiezoelectricity (압전)-
dc.subjectMechanical sensor (기계적 센서)-
dc.subjectPulse sensing (맥박 감지)-
dc.title정렬된 압전 나노섬유 기반 미세 변형 측정 유연 센서 및 맥박 측정으로의 응용-
dc.title.alternativeFlexible sensor on the basis of aligned piezoelectric nanofibers for measurement of small deformations and its application to pulse monitoring-
dc.typeArticle-
dc.relation.no2-
dc.relation.volume37-
dc.identifier.doi10.7736/JKSPE.019.137-
dc.relation.page125-131-
dc.relation.journalJournal of the Korean Society for Precision Engineering-
dc.contributor.googleauthor이한빛-
dc.contributor.googleauthor김영원-
dc.contributor.googleauthor박진호-
dc.contributor.googleauthor윤종헌-
dc.contributor.googleauthor박석희-
dc.sector.campusE-
dc.sector.daehak공학대학-
dc.sector.department기계공학과-
dc.identifier.pidjyoon-
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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