DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Sohn, Hoon | - |
dc.contributor.advisor | 손훈 | - |
dc.contributor.author | Song, Ho-Min | - |
dc.contributor.author | 송호민 | - |
dc.date.accessioned | 2015-04-23T08:49:13Z | - |
dc.date.available | 2015-04-23T08:49:13Z | - |
dc.date.issued | 2013 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=567263&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/197847 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 건설및환경공학과, 2013.2, [ viii, 50 p. ] | - |
dc.description.abstract | This study presents an electromechanical (EM) impedance measurement technique using a dual piezoelectric transducer for continuous monitoring of large structures. The dual piezoelectric transducer, composed of two separate but concentric lead zirconate titanate (PZT) segments, can effectively measure the small response of the host structure, since it is not influenced by the excitation-induced PZT strain. The proposed EM impedance measure-ment technique shows high signal-to-noise ratio (SNR) and good repeatability from the measured impedance signals in massive structures. At the same time, the proposed technique allows low-cost and fast measurement of the impedance signatures. In this study, the dual PZT impedance measurement is formulated theoretically and verified numerically. Then, a series of experimental validation were carried out on a laboratory-size specimen and full-scale bridge and building structures. The experimental results show that the proposed technique successfully measures the EM impedance signals with high SNR and good repeatability from massive structures even in which the conventional techniques fail to do so. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Dual piezoelectric transducer | - |
dc.subject | 높은 신호대 잡음비 및 반복률 | - |
dc.subject | 분리된 가진과 측정 | - |
dc.subject | 대형 구조물 | - |
dc.subject | 기전 임피던스 | - |
dc.subject | 이중 압전센서 | - |
dc.subject | Electromechanical impedance | - |
dc.subject | Large structures | - |
dc.subject | Separate excitation and sensing | - |
dc.subject | High signal-to-noise ratio | - |
dc.subject | Good repeatability | - |
dc.title | Dual piezoelectric transducer based electromechanical impedance measurement for health monitoring of large structures | - |
dc.title.alternative | 대형 구조물의 건전성 모니터링을 위한 동심원형 이중 압전센서 기반의 기전 임피던스 계측 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 567263/325007 | - |
dc.description.department | 한국과학기술원 : 건설및환경공학과, | - |
dc.identifier.uid | 020113313 | - |
dc.contributor.localauthor | Sohn, Hoon | - |
dc.contributor.localauthor | 손훈 | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.