Improving the signal amplitude of meandering coil EMATs by using ribbon soft magnetic flux concentrators (MFC)
► This paper presents a new method of improving the ultrasonic signal amplitudes from a meander line (ML) EMAT. ► A soft magnetic material (Fe 60V 10V 10B 20) has been used as a magnetic flux concentrator (MFC) to improve the magnetic field. ► A 2D numerical model has been developed for the MFC with...
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| Veröffentlicht in: | Ultrasonics 2011-08, Vol.51 (6), p.675-682 |
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| creator | Dhayalan, R. Satya Narayana Murthy, V. Krishnamurthy, C.V. Balasubramaniam, Krishnan |
| description | ► This paper presents a new method of improving the ultrasonic signal amplitudes from a meander line (ML) EMAT. ► A soft magnetic material (Fe
60V
10V
10B
20) has been used as a magnetic flux concentrator (MFC) to improve the magnetic field. ► A 2D numerical model has been developed for the MFC with magnet to calculate the improved magnetic field. ► The ML EMAT signal amplitude with MFC has been increased by a factor of two compared to the signal without MFC.
This paper presents a new method of improving the ultrasonic signal amplitude from a meander line EMAT by using soft magnetic alloy ribbon (Fe
60Ni
10V
10B
20) as a magnetic flux concentrator (MFC). The flux concentrator is a thin soft amorphous magnetic material (Fe
60Ni
10V
10B
20) which is very sensitive to a small flux change. The MFC is used with the EMAT to improve the signal amplitude and it was observed that the peak signal amplitude increases by a factor of two compared to the signal without MFC. Two dimensional numerical models have been developed for the EMAT with MFC to quantify the improvement of the received signal amplitudes. Model calculations and experiments have been carried out for a wide range of ultrasonic frequencies (500
kHz–1
MHz) in different materials. |
| doi_str_mv | 10.1016/j.ultras.2011.01.009 |
| format | Article |
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60V
10V
10B
20) has been used as a magnetic flux concentrator (MFC) to improve the magnetic field. ► A 2D numerical model has been developed for the MFC with magnet to calculate the improved magnetic field. ► The ML EMAT signal amplitude with MFC has been increased by a factor of two compared to the signal without MFC.
This paper presents a new method of improving the ultrasonic signal amplitude from a meander line EMAT by using soft magnetic alloy ribbon (Fe
60Ni
10V
10B
20) as a magnetic flux concentrator (MFC). The flux concentrator is a thin soft amorphous magnetic material (Fe
60Ni
10V
10B
20) which is very sensitive to a small flux change. The MFC is used with the EMAT to improve the signal amplitude and it was observed that the peak signal amplitude increases by a factor of two compared to the signal without MFC. Two dimensional numerical models have been developed for the EMAT with MFC to quantify the improvement of the received signal amplitudes. Model calculations and experiments have been carried out for a wide range of ultrasonic frequencies (500
kHz–1
MHz) in different materials.</description><identifier>ISSN: 0041-624X</identifier><identifier>EISSN: 1874-9968</identifier><identifier>DOI: 10.1016/j.ultras.2011.01.009</identifier><identifier>PMID: 21376358</identifier><identifier>CODEN: ULTRA3</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Acoustics ; Amplitudes ; Coiling ; Concentrators ; Exact sciences and technology ; Flux ; Fundamental areas of phenomenology (including applications) ; Lorentz force ; Magnetic flux ; Magnetic flux concentrator (MFC) ; Magnetics ; Mathematical models ; Meander coil EMAT ; Meanders ; Models, Theoretical ; Physics ; Ribbons ; Soft magnetic ribbons ; Transducers ; Transduction; acoustical devices for the generation and reproduction of sound ; Ultrasonics - methods</subject><ispartof>Ultrasonics, 2011-08, Vol.51 (6), p.675-682</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2011 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c423t-f7273a321d20b2e6d4c3a5db723da8ace09fb0aa0e4bf3eb107023d2dc035fd33</citedby><cites>FETCH-LOGICAL-c423t-f7273a321d20b2e6d4c3a5db723da8ace09fb0aa0e4bf3eb107023d2dc035fd33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ultras.2011.01.009$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,778,782,3539,27911,27912,45982</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24202690$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21376358$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Dhayalan, R.</creatorcontrib><creatorcontrib>Satya Narayana Murthy, V.</creatorcontrib><creatorcontrib>Krishnamurthy, C.V.</creatorcontrib><creatorcontrib>Balasubramaniam, Krishnan</creatorcontrib><title>Improving the signal amplitude of meandering coil EMATs by using ribbon soft magnetic flux concentrators (MFC)</title><title>Ultrasonics</title><addtitle>Ultrasonics</addtitle><description>► This paper presents a new method of improving the ultrasonic signal amplitudes from a meander line (ML) EMAT. ► A soft magnetic material (Fe
60V
10V
10B
20) has been used as a magnetic flux concentrator (MFC) to improve the magnetic field. ► A 2D numerical model has been developed for the MFC with magnet to calculate the improved magnetic field. ► The ML EMAT signal amplitude with MFC has been increased by a factor of two compared to the signal without MFC.
This paper presents a new method of improving the ultrasonic signal amplitude from a meander line EMAT by using soft magnetic alloy ribbon (Fe
60Ni
10V
10B
20) as a magnetic flux concentrator (MFC). The flux concentrator is a thin soft amorphous magnetic material (Fe
60Ni
10V
10B
20) which is very sensitive to a small flux change. The MFC is used with the EMAT to improve the signal amplitude and it was observed that the peak signal amplitude increases by a factor of two compared to the signal without MFC. Two dimensional numerical models have been developed for the EMAT with MFC to quantify the improvement of the received signal amplitudes. Model calculations and experiments have been carried out for a wide range of ultrasonic frequencies (500
kHz–1
MHz) in different materials.</description><subject>Acoustics</subject><subject>Amplitudes</subject><subject>Coiling</subject><subject>Concentrators</subject><subject>Exact sciences and technology</subject><subject>Flux</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Lorentz force</subject><subject>Magnetic flux</subject><subject>Magnetic flux concentrator (MFC)</subject><subject>Magnetics</subject><subject>Mathematical models</subject><subject>Meander coil EMAT</subject><subject>Meanders</subject><subject>Models, Theoretical</subject><subject>Physics</subject><subject>Ribbons</subject><subject>Soft magnetic ribbons</subject><subject>Transducers</subject><subject>Transduction; acoustical devices for the generation and reproduction of sound</subject><subject>Ultrasonics - methods</subject><issn>0041-624X</issn><issn>1874-9968</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU2LFDEQhoMo7rj6D0RyEfXQY-Vj-uOysAy7urCLlxW8hXRSGTOk02PSvbj_3jQz6k2hoKDyVNWbegl5zWDNgNUf9-s5TEnnNQfG1lACuidkxdpGVl1Xt0_JCkCyquby2xl5kfMegMmWiefkjDPR1GLTrki8GQ5pfPBxR6fvSLPfRR2oHg7BT7NFOjo6oI4W04KY0Qd6dXd5n2n_SOe81JLv-zHSPLqJDnoXcfKGujD_LHQ0GIvGaUyZvr-73n54SZ45HTK-OuVz8vX66n77ubr98ulme3lbGcnFVLmGN0ILziyHnmNtpRF6Y_uGC6tbbRA614PWgLJ3AnsGDZQnbg2IjbNCnJN3x7nlcz9mzJMafDYYgo44zlm1bSeFEJz_n6w3dQc1W2bKI2nSmHNCpw7JDzo9KgZqsUTt1dEStViioAR0pe3NacHcD2j_NP32oABvT4DORgeXdDQ-_-UkB14kFO7iyGE53IPHpLLxWE5sfUIzKTv6fyv5BUIprMQ</recordid><startdate>20110801</startdate><enddate>20110801</enddate><creator>Dhayalan, R.</creator><creator>Satya Narayana Murthy, V.</creator><creator>Krishnamurthy, C.V.</creator><creator>Balasubramaniam, Krishnan</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20110801</creationdate><title>Improving the signal amplitude of meandering coil EMATs by using ribbon soft magnetic flux concentrators (MFC)</title><author>Dhayalan, R. ; Satya Narayana Murthy, V. ; Krishnamurthy, C.V. ; Balasubramaniam, Krishnan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c423t-f7273a321d20b2e6d4c3a5db723da8ace09fb0aa0e4bf3eb107023d2dc035fd33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Acoustics</topic><topic>Amplitudes</topic><topic>Coiling</topic><topic>Concentrators</topic><topic>Exact sciences and technology</topic><topic>Flux</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Lorentz force</topic><topic>Magnetic flux</topic><topic>Magnetic flux concentrator (MFC)</topic><topic>Magnetics</topic><topic>Mathematical models</topic><topic>Meander coil EMAT</topic><topic>Meanders</topic><topic>Models, Theoretical</topic><topic>Physics</topic><topic>Ribbons</topic><topic>Soft magnetic ribbons</topic><topic>Transducers</topic><topic>Transduction; acoustical devices for the generation and reproduction of sound</topic><topic>Ultrasonics - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dhayalan, R.</creatorcontrib><creatorcontrib>Satya Narayana Murthy, V.</creatorcontrib><creatorcontrib>Krishnamurthy, C.V.</creatorcontrib><creatorcontrib>Balasubramaniam, Krishnan</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Ultrasonics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dhayalan, R.</au><au>Satya Narayana Murthy, V.</au><au>Krishnamurthy, C.V.</au><au>Balasubramaniam, Krishnan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improving the signal amplitude of meandering coil EMATs by using ribbon soft magnetic flux concentrators (MFC)</atitle><jtitle>Ultrasonics</jtitle><addtitle>Ultrasonics</addtitle><date>2011-08-01</date><risdate>2011</risdate><volume>51</volume><issue>6</issue><spage>675</spage><epage>682</epage><pages>675-682</pages><issn>0041-624X</issn><eissn>1874-9968</eissn><coden>ULTRA3</coden><abstract>► This paper presents a new method of improving the ultrasonic signal amplitudes from a meander line (ML) EMAT. ► A soft magnetic material (Fe
60V
10V
10B
20) has been used as a magnetic flux concentrator (MFC) to improve the magnetic field. ► A 2D numerical model has been developed for the MFC with magnet to calculate the improved magnetic field. ► The ML EMAT signal amplitude with MFC has been increased by a factor of two compared to the signal without MFC.
This paper presents a new method of improving the ultrasonic signal amplitude from a meander line EMAT by using soft magnetic alloy ribbon (Fe
60Ni
10V
10B
20) as a magnetic flux concentrator (MFC). The flux concentrator is a thin soft amorphous magnetic material (Fe
60Ni
10V
10B
20) which is very sensitive to a small flux change. The MFC is used with the EMAT to improve the signal amplitude and it was observed that the peak signal amplitude increases by a factor of two compared to the signal without MFC. Two dimensional numerical models have been developed for the EMAT with MFC to quantify the improvement of the received signal amplitudes. Model calculations and experiments have been carried out for a wide range of ultrasonic frequencies (500
kHz–1
MHz) in different materials.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><pmid>21376358</pmid><doi>10.1016/j.ultras.2011.01.009</doi><tpages>8</tpages></addata></record> |
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| ispartof | Ultrasonics, 2011-08, Vol.51 (6), p.675-682 |
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| subjects | Acoustics Amplitudes Coiling Concentrators Exact sciences and technology Flux Fundamental areas of phenomenology (including applications) Lorentz force Magnetic flux Magnetic flux concentrator (MFC) Magnetics Mathematical models Meander coil EMAT Meanders Models, Theoretical Physics Ribbons Soft magnetic ribbons Transducers Transduction acoustical devices for the generation and reproduction of sound Ultrasonics - methods |
| title | Improving the signal amplitude of meandering coil EMATs by using ribbon soft magnetic flux concentrators (MFC) |
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