Comparison of an Array of EMATs Technique and a Magnetostrictive Sensor Technique for a Guided Wave Inspection of a Pipe
The leakage of a pipe in nuclear power plants is a significant concern from the point of view of nuclear safety. Because of the geometrical complexity of a pipe and an inaccessibility due to a high radiation, it is difficult to inspect it by the conventional ultrasonic methods. The guided ultrasonic...
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| Veröffentlicht in: | Key engineering materials 2006-01, Vol.321-323, p.780-783 |
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| creator | Cheong, Yong Moo Jung, Hyun Kyu Kim, Young Suk |
| description | The leakage of a pipe in nuclear power plants is a significant concern from the point of
view of nuclear safety. Because of the geometrical complexity of a pipe and an inaccessibility due to a
high radiation, it is difficult to inspect it by the conventional ultrasonic methods. The guided
ultrasonic method can be useful for the inspection of a pipe in those harsh environments. Based on the
analysis of the dispersion curves for a pipe, a torsional vibration mode, T(0,1) was selected for the
detection of cracks. The T(0,1) mode has many advantages, such as a higher sensitivity for a crack
from the viewpoint of its non-dispersion characteristics and its wave structure. The torsional mode
can be generated by using either an array of electromagnetic acoustic transducers (EMATs) technique
or a magnetostrictive sensor technique. The detectability of the cracks was estimated through a series
of experiments with artificial notches on a pipe. |
| doi_str_mv | 10.4028/www.scientific.net/KEM.321-323.780 |
| format | Article |
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view of nuclear safety. Because of the geometrical complexity of a pipe and an inaccessibility due to a
high radiation, it is difficult to inspect it by the conventional ultrasonic methods. The guided
ultrasonic method can be useful for the inspection of a pipe in those harsh environments. Based on the
analysis of the dispersion curves for a pipe, a torsional vibration mode, T(0,1) was selected for the
detection of cracks. The T(0,1) mode has many advantages, such as a higher sensitivity for a crack
from the viewpoint of its non-dispersion characteristics and its wave structure. The torsional mode
can be generated by using either an array of electromagnetic acoustic transducers (EMATs) technique
or a magnetostrictive sensor technique. The detectability of the cracks was estimated through a series
of experiments with artificial notches on a pipe.</description><identifier>ISSN: 1013-9826</identifier><identifier>ISSN: 1662-9795</identifier><identifier>EISSN: 1662-9795</identifier><identifier>DOI: 10.4028/www.scientific.net/KEM.321-323.780</identifier><language>eng</language><publisher>Trans Tech Publications Ltd</publisher><ispartof>Key engineering materials, 2006-01, Vol.321-323, p.780-783</ispartof><rights>2006 Trans Tech Publications Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c301t-8c7919c3430ccfe62516aba1b0faa6c9fb758b817aed6c331db0e49e3c81fbce3</citedby><cites>FETCH-LOGICAL-c301t-8c7919c3430ccfe62516aba1b0faa6c9fb758b817aed6c331db0e49e3c81fbce3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttps://www.scientific.net/Image/TitleCover/42?width=600</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Cheong, Yong Moo</creatorcontrib><creatorcontrib>Jung, Hyun Kyu</creatorcontrib><creatorcontrib>Kim, Young Suk</creatorcontrib><title>Comparison of an Array of EMATs Technique and a Magnetostrictive Sensor Technique for a Guided Wave Inspection of a Pipe</title><title>Key engineering materials</title><description>The leakage of a pipe in nuclear power plants is a significant concern from the point of
view of nuclear safety. Because of the geometrical complexity of a pipe and an inaccessibility due to a
high radiation, it is difficult to inspect it by the conventional ultrasonic methods. The guided
ultrasonic method can be useful for the inspection of a pipe in those harsh environments. Based on the
analysis of the dispersion curves for a pipe, a torsional vibration mode, T(0,1) was selected for the
detection of cracks. The T(0,1) mode has many advantages, such as a higher sensitivity for a crack
from the viewpoint of its non-dispersion characteristics and its wave structure. The torsional mode
can be generated by using either an array of electromagnetic acoustic transducers (EMATs) technique
or a magnetostrictive sensor technique. The detectability of the cracks was estimated through a series
of experiments with artificial notches on a pipe.</description><issn>1013-9826</issn><issn>1662-9795</issn><issn>1662-9795</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqVkE1LAzEQhhdRUKv_IScPwq75aHezx1rrB1oUrHgM2exEI22yJltr_70jFfTqIWTCPLyTebLslNFiSLk8W6_XRTIOfO-sM4WH_ux2OisEZ7ngoqgk3ckOWFnyvK7q0S7WlIm8lrzczw5TeqNUMMlGB9nnJCw7HV0KngRLtCfjGPXmu57OxvNE5mBevXtfAfZaoslMv-C0kProTO8-gDyCTyH-4Sy-NLlauRZa8qwRufGpA6R_ZpAH18FRtmf1IsHxzz3Ini6n88l1fnd_dTMZ3-VGUNbn0lQ1q40YCmqMhZKPWKkbzRpqtS5NbZtqJBvJKg1taYRgbUNhWIMwktnGgBhkJ9vcLgb8XerV0iUDi4X2EFZJ8ZoPGeMSwfMtaGJIKYJVXXRLHTeKUfUtXaF09StdoQaF0hVKxyMUSseQi21IH7VPPTpRb2EVPW74n5gvRbmW2Q</recordid><startdate>20060101</startdate><enddate>20060101</enddate><creator>Cheong, Yong Moo</creator><creator>Jung, Hyun Kyu</creator><creator>Kim, Young Suk</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20060101</creationdate><title>Comparison of an Array of EMATs Technique and a Magnetostrictive Sensor Technique for a Guided Wave Inspection of a Pipe</title><author>Cheong, Yong Moo ; Jung, Hyun Kyu ; Kim, Young Suk</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c301t-8c7919c3430ccfe62516aba1b0faa6c9fb758b817aed6c331db0e49e3c81fbce3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cheong, Yong Moo</creatorcontrib><creatorcontrib>Jung, Hyun Kyu</creatorcontrib><creatorcontrib>Kim, Young Suk</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Key engineering materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cheong, Yong Moo</au><au>Jung, Hyun Kyu</au><au>Kim, Young Suk</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of an Array of EMATs Technique and a Magnetostrictive Sensor Technique for a Guided Wave Inspection of a Pipe</atitle><jtitle>Key engineering materials</jtitle><date>2006-01-01</date><risdate>2006</risdate><volume>321-323</volume><spage>780</spage><epage>783</epage><pages>780-783</pages><issn>1013-9826</issn><issn>1662-9795</issn><eissn>1662-9795</eissn><abstract>The leakage of a pipe in nuclear power plants is a significant concern from the point of
view of nuclear safety. Because of the geometrical complexity of a pipe and an inaccessibility due to a
high radiation, it is difficult to inspect it by the conventional ultrasonic methods. The guided
ultrasonic method can be useful for the inspection of a pipe in those harsh environments. Based on the
analysis of the dispersion curves for a pipe, a torsional vibration mode, T(0,1) was selected for the
detection of cracks. The T(0,1) mode has many advantages, such as a higher sensitivity for a crack
from the viewpoint of its non-dispersion characteristics and its wave structure. The torsional mode
can be generated by using either an array of electromagnetic acoustic transducers (EMATs) technique
or a magnetostrictive sensor technique. The detectability of the cracks was estimated through a series
of experiments with artificial notches on a pipe.</abstract><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/KEM.321-323.780</doi><tpages>4</tpages></addata></record> |
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| title | Comparison of an Array of EMATs Technique and a Magnetostrictive Sensor Technique for a Guided Wave Inspection of a Pipe |
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