Guided wave enhancement phased array beamforming scheme using recursive feedback
Guided waves are well established and beneficial tools of ultrasonic nondestructive evaluation applications. Using a phased array it is possible to ensure selectivity, both in terms of the mode and the direction of the wave. Yet, there is a growing need to improve both selectivity and power efficien...
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| creator | Charutz, David M. Mor, Etai Harput, Sevan Cowell, David M. J. Smith, Peter R. Freear, Steven |
| description | Guided waves are well established and beneficial tools of ultrasonic nondestructive evaluation applications. Using a phased array it is possible to ensure selectivity, both in terms of the mode and the direction of the wave. Yet, there is a growing need to improve both selectivity and power efficiency of the transmitted ultrasonic wave. The aim of this study is to improve the identification of cracks in thin plates and pipes. In this work, a novel adaptive beamforming technique for guided waves is developed. The method is based on a recursive feedback algorithm which optimizes the individual excitation waveforms to increase the total energy at a desired mode, and enhance a unidirectional propagation of the ultrasonic wave. |
| doi_str_mv | 10.1109/ULTSYM.2013.0043 |
| format | Conference Proceeding |
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The method is based on a recursive feedback algorithm which optimizes the individual excitation waveforms to increase the total energy at a desired mode, and enhance a unidirectional propagation of the ultrasonic wave.</description><subject>Acoustics</subject><subject>Arrays</subject><subject>beamforming</subject><subject>Dispersion</subject><subject>Educational institutions</subject><subject>Finite element analysis</subject><subject>Materials</subject><subject>nondestructive testing</subject><subject>phased array</subject><subject>recursive feedback</subject><subject>Transducers</subject><subject>unidirectional guided waves</subject><issn>1051-0117</issn><isbn>9781467356848</isbn><isbn>1467356840</isbn><isbn>9781467356862</isbn><isbn>1467356867</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2013</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotjE1Lw0AURUdQsNbuBTf5A4nvzXeWUrQKEQXbhasymXkxURPLTKP03xvR1eUe7rmMXSAUiFBebar188tDwQFFASDFEVuUxqLURihtpT1mMwSFOSCaU3aW0hsAB8XljD2txi5QyL7dF2U0tG7w1NOwz3atSxN3MbpDVpPrm8_Yd8Nrlnw7LbIx_ZZIfoypm9yGKNTOv5-zk8Z9JFr855xtbm_Wy7u8elzdL6-rvONg97lXHkPpQgi6FoKg5spYLQGlAq4aqwWaoJX0UiGvQSI4wsY6AR6NIi7m7PLvtyOi7S52vYuHrTZclkKJH7DeTxQ</recordid><startdate>20130701</startdate><enddate>20130701</enddate><creator>Charutz, David M.</creator><creator>Mor, Etai</creator><creator>Harput, Sevan</creator><creator>Cowell, David M. 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J.</creatorcontrib><creatorcontrib>Smith, Peter R.</creatorcontrib><creatorcontrib>Freear, Steven</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Charutz, David M.</au><au>Mor, Etai</au><au>Harput, Sevan</au><au>Cowell, David M. J.</au><au>Smith, Peter R.</au><au>Freear, Steven</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Guided wave enhancement phased array beamforming scheme using recursive feedback</atitle><btitle>2013 IEEE International Ultrasonics Symposium (IUS)</btitle><stitle>IUS</stitle><date>2013-07-01</date><risdate>2013</risdate><spage>166</spage><epage>169</epage><pages>166-169</pages><issn>1051-0117</issn><eisbn>9781467356848</eisbn><eisbn>1467356840</eisbn><eisbn>9781467356862</eisbn><eisbn>1467356867</eisbn><abstract>Guided waves are well established and beneficial tools of ultrasonic nondestructive evaluation applications. Using a phased array it is possible to ensure selectivity, both in terms of the mode and the direction of the wave. Yet, there is a growing need to improve both selectivity and power efficiency of the transmitted ultrasonic wave. The aim of this study is to improve the identification of cracks in thin plates and pipes. In this work, a novel adaptive beamforming technique for guided waves is developed. The method is based on a recursive feedback algorithm which optimizes the individual excitation waveforms to increase the total energy at a desired mode, and enhance a unidirectional propagation of the ultrasonic wave.</abstract><pub>IEEE</pub><doi>10.1109/ULTSYM.2013.0043</doi><tpages>4</tpages></addata></record> |
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| ispartof | 2013 IEEE International Ultrasonics Symposium (IUS), 2013, p.166-169 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Acoustics Arrays beamforming Dispersion Educational institutions Finite element analysis Materials nondestructive testing phased array recursive feedback Transducers unidirectional guided waves |
| title | Guided wave enhancement phased array beamforming scheme using recursive feedback |
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