DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chong, See Yenn | ko |
dc.contributor.author | Lee, Jung-Ryul | ko |
dc.contributor.author | Yun, Chang-Yong | ko |
dc.contributor.author | Sohn, Hoon | ko |
dc.date.accessioned | 2013-03-11T05:53:08Z | - |
dc.date.available | 2013-03-11T05:53:08Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2011-05 | - |
dc.identifier.citation | NUCLEAR ENGINEERING AND DESIGN, v.241, no.5, pp.1889 - 1898 | - |
dc.identifier.issn | 0029-5493 | - |
dc.identifier.uri | http://hdl.handle.net/10203/98433 | - |
dc.description.abstract | A nuclear power plant (NPP) is a harsh environment that gives rise to age-related degradation of the plant structures, and eventually leads to radiation leakage that threatens humans. Integrated structural health monitoring (ISHM) technology is a strong candidate for the prevention of the NPP accidents during operation. Prior studies have shown that fiber Bragg gratings (FBGs) and metal-coated fibers have good radiation and high temperature resistance. In this study, a FBG acoustic sensor using a metallic adhesive for installation and a relatively economical copper/carbon (Cu/C)-coated fiber is developed for ISHM of high temperature NPP structures. A chemical method is proposed to remove the Cu/C coating. A 5 mm FBG was successfully inscribed in a Ge-doped silica core through a 7 mm-long silica section with the coating removed. The Cu/C-coated fiber with the same core/clad structure as the standard SMF allowed no-loss fusion splicing, and showed good adaptability to the economical standard fiber, adaptor, connector, and instruments. It showed also good thermal resistance (<345 degrees C) with no degradation in optical power during the optical transmission. The metallic adhesive used to install the FBG in a one-end-free configuration showed superior bonding reliability during temperature cycles ranging from 25 degrees C to 345 degrees C. The FBG reflectivity was stabilized at a 58% drop from the initial reflectivity, and the Cu/C-coated FBG sensor using the metallic adhesive could successfully detect the acousto-ultrasonic waves generated by pencil lead breaking and laser beam excitation. (C) 2011 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Design of copper/carbon-coated fiber Bragg grating acoustic sensor net for integrated health monitoring of nuclear power plant | - |
dc.type | Article | - |
dc.identifier.wosid | 000291126000064 | - |
dc.identifier.scopusid | 2-s2.0-79955011357 | - |
dc.type.rims | ART | - |
dc.citation.volume | 241 | - |
dc.citation.issue | 5 | - |
dc.citation.beginningpage | 1889 | - |
dc.citation.endingpage | 1898 | - |
dc.citation.publicationname | NUCLEAR ENGINEERING AND DESIGN | - |
dc.identifier.doi | 10.1016/j.nucengdes.2011.01.042 | - |
dc.contributor.localauthor | Lee, Jung-Ryul | - |
dc.contributor.localauthor | Sohn, Hoon | - |
dc.contributor.nonIdAuthor | Chong, See Yenn | - |
dc.contributor.nonIdAuthor | Yun, Chang-Yong | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | TEMPERATURE APPLICATIONS | - |
dc.subject.keywordPlus | LASER-RADIATION | - |
dc.subject.keywordPlus | INTERFEROMETER | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | OPERATION | - |
dc.subject.keywordPlus | DEVICES | - |
dc.subject.keywordPlus | SYSTEMS | - |
dc.subject.keywordPlus | SINGLE | - |
dc.subject.keywordPlus | WAVES | - |
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