안정화된 FBG 센서를 이용한 복합적층보에서의 충격위치검출Impact Monitoring in Composite Beam Using Stabilization Controlled FBG Sensor System

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dc.contributor.author방형준-
dc.contributor.author박상오-
dc.contributor.author홍창선-
dc.contributor.author김천곤-
dc.date.accessioned2009-12-22T08:13:55Z-
dc.date.available2009-12-22T08:13:55Z-
dc.date.created2012-02-06-
dc.date.issued2004-04-
dc.identifier.citation한국복합재료학회 2004년도 춘계학술발표대회, v., no., pp.103 - 106-
dc.identifier.urihttp://hdl.handle.net/10203/15624-
dc.description.abstractImpact location monitoring is one of the major concerns of the smart health monitoring. For this application, multipoint ultrasonic sensors are to be employed. In this study, a multiplexed FBG sensor system with wide dynamic range was proposed and stabilization controlling system was also developed for the maintenance of maximum sensitivity of sensors. For the intensity demodulation system of FBG sensors, Fabry-Perot tunable filter(FP-TF) with 23.8nm FSR(free spectral range) was used, which behaves as two separate filters between nm range. Two FBG sensors were attached on the bottom side of the graphite/epoxy composite beam specimen, and low velocity impact tests were performed to detect the one-dimensional impact locations. Impact locations were calculated by the arrival time differences of the impact longitudinal waves acquired by the two FBGs. As a result, multiplexed in-line FBG sensors could detect the moment of impact precisely and found the impact locations with the average error of 1.32mm.-
dc.languageKOR-
dc.language.isokoen
dc.publisher한국복합재료학회-
dc.title안정화된 FBG 센서를 이용한 복합적층보에서의 충격위치검출-
dc.title.alternativeImpact Monitoring in Composite Beam Using Stabilization Controlled FBG Sensor System-
dc.typeConference-
dc.subject.alternativefiber Bragg gratingen
dc.subject.alternativeimpact monitoringen
dc.type.rimsCONF-
dc.citation.beginningpage103-
dc.citation.endingpage106-
dc.citation.publicationname한국복합재료학회 2004년도 춘계학술발표대회-
dc.identifier.conferencecountrySouth Korea-
dc.identifier.conferencecountrySouth Korea-
dc.contributor.localauthor홍창선-
dc.contributor.localauthor김천곤-
dc.contributor.nonIdAuthor방형준-
dc.contributor.nonIdAuthor박상오-

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