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공공누리This item is licensed Korea Open Government License

Title
Oil-Tank Weld Detection Using EMAT
Author(s)
Li ChenYoung-Chul BaeHong-Sik MoonWang-Rim ChoiYi-Gon Kim이정구
Publication Year
2017-04-17
Abstract
Tanks are typically used for the storage of oil by the petrochemical industry, and the storagequality is largely determined by the safety of the equipment. Recently, ElectromagneticAcoustic Transducer (EMAT) technology has been the focus of many non-destructive examinations,as EMATs can generate elastic waves without contact, thereby making it easy tocarry out the process of detection. The Shear Horizontal (SH)-guided waves that are generatedby an EMAT are modeled in a plate made of ferromagnetic material, and this is of particularinterest regarding the testing of welded structures. This paper provides an EMAT-sensor designthat can be used to ¯nd cracks in the welds of a tank whereby the need for people to climb ontothe tank is removed; furthermore, regarding cases where the amplitude signal of the SH-waveEMATs is too low, a simulation is used in this paper to propose a method that improves thetransduction e±ciency.
Keyword
EMAT; tank; elastic wave; SH-guided wave
Journal Title
International Journal of Humanoid Robotics
Citation Volume
14
ISSN
0219-8436
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7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14609
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART78523404
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