DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jung-Ryul | ko |
dc.contributor.author | Sunuwar, Nitam | ko |
dc.contributor.author | Park, Chan-Yik | ko |
dc.date.accessioned | 2016-04-05T16:21:25Z | - |
dc.date.available | 2016-04-05T16:21:25Z | - |
dc.date.created | 2015-01-19 | - |
dc.date.created | 2015-01-19 | - |
dc.date.created | 2015-01-19 | - |
dc.date.issued | 2014-03 | - |
dc.identifier.citation | JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, v.25, no.5, pp.551 - 562 | - |
dc.identifier.issn | 1045-389X | - |
dc.identifier.uri | http://hdl.handle.net/10203/202809 | - |
dc.description.abstract | Air-coupled nondestructive testing is an attractive technique that allows easy scanning inspection capability due to its noncontact nature with the specimen. A piezoelectric air-coupled transducer has been combined with a laser ultrasonic propagation imaging system as a fixed noncontact sensor. However, the large impedance mismatch between air and a specimen and its narrowband frequency range has prevented it from being efficiently used in real-world applications as a laser-air-coupled transducer ultrasonic propagation imaging system. Therefore, instead of combination with a piezoelectric air-coupled transducer, a combination between a laser and a capacitance air-coupled transducer is proposed through a comparative analysis between the capacitance and piezoelectric air-coupled transducers as the ultrasonic detector of the ultrasonic propagation imaging system. Under the same conditions, a series of experiments was conducted to examine the damage sensitivity in metal and composite specimens that have a hidden crack and barely visible impact damages, respectively. This noncontact system was further improved using repeat-scanning technique to enhance the signal-to-noise ratio and to overcome high attenuation problems, especially in composite specimens. | - |
dc.language | English | - |
dc.publisher | SAGE PUBLICATIONS LTD | - |
dc.subject | GENERATED ULTRASOUND | - |
dc.title | Comparative analysis of laser ultrasonic propagation imaging system with capacitance and piezoelectric air-coupled transducers | - |
dc.type | Article | - |
dc.identifier.wosid | 000331928300004 | - |
dc.identifier.scopusid | 2-s2.0-84896836339 | - |
dc.type.rims | ART | - |
dc.citation.volume | 25 | - |
dc.citation.issue | 5 | - |
dc.citation.beginningpage | 551 | - |
dc.citation.endingpage | 562 | - |
dc.citation.publicationname | JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES | - |
dc.identifier.doi | 10.1177/1045389X13481253 | - |
dc.contributor.localauthor | Lee, Jung-Ryul | - |
dc.contributor.nonIdAuthor | Sunuwar, Nitam | - |
dc.contributor.nonIdAuthor | Park, Chan-Yik | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordAuthor | ultrasonic propagation imaging | - |
dc.subject.keywordAuthor | piezoelectric air-coupled transducer | - |
dc.subject.keywordAuthor | laser ultrasonic | - |
dc.subject.keywordAuthor | Capacitance air-coupled transducer | - |
dc.subject.keywordPlus | GENERATED ULTRASOUND | - |
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