Improving ultrasonic imaging of aluminum plates using phase modulation
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.29292/jics.v15i3.191 http://hdl.handle.net/11449/208278 |
Resumo: | Conventional techniques for ultrasonic image beamforming use amplitude information to produce the im-ages. Although amplitude images can be obtained with high quality, they can also present limitations regarding dead zone, artifacts and detection of far reflectors. Coherence techniques based on signal phase result in images that can be used to in-dicate the presence of a defect or reflector, with improve-ments over those limitations. This work proposes the use of phase modulation in the excitation signal and the application of the Pearson correlation to the instantaneous phase image. Simulations and experimental tests in an aluminum plate with artificial defects using Lamb waves and a linear piezo-electric array were conducted. The frequency response of the transducers-plate system was considered, leading to images with reduced artifacts and dead zone, and improvement in lateral resolution when compared to amplitude and instantaneous phase images without modulation. |
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Improving ultrasonic imaging of aluminum plates using phase modulationInstantaneous PhasePearson correlation coefficientPhase modulationUl-trasonic imagingConventional techniques for ultrasonic image beamforming use amplitude information to produce the im-ages. Although amplitude images can be obtained with high quality, they can also present limitations regarding dead zone, artifacts and detection of far reflectors. Coherence techniques based on signal phase result in images that can be used to in-dicate the presence of a defect or reflector, with improve-ments over those limitations. This work proposes the use of phase modulation in the excitation signal and the application of the Pearson correlation to the instantaneous phase image. Simulations and experimental tests in an aluminum plate with artificial defects using Lamb waves and a linear piezo-electric array were conducted. The frequency response of the transducers-plate system was considered, leading to images with reduced artifacts and dead zone, and improvement in lateral resolution when compared to amplitude and instantaneous phase images without modulation.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Department of Electrical Engineering UNESP (Univ. Estadual Paulista)Department of Electrical Engineering UTFPR (Univ. Tecnonógica Federal do Paraná)Department of Electrical Engineering UNESP (Univ. Estadual Paulista)CAPES: 001Universidade Estadual Paulista (Unesp)UTFPR (Univ. Tecnonógica Federal do Paraná)Tischer, Rafael M. [UNESP]Higuti, Ricardo T. [UNESP]Kitano, Cláudio [UNESP]Prado, Vander T.2021-06-25T11:09:37Z2021-06-25T11:09:37Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-5http://dx.doi.org/10.29292/jics.v15i3.191Journal of Integrated Circuits and Systems, v. 15, n. 3, p. 1-5, 2020.1872-02341807-1953http://hdl.handle.net/11449/20827810.29292/jics.v15i3.1912-s2.0-8509848451728834403518951670000-0001-6320-755XScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Integrated Circuits and Systemsinfo:eu-repo/semantics/openAccess2024-07-04T19:06:14Zoai:repositorio.unesp.br:11449/208278Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:23:10.943031Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Improving ultrasonic imaging of aluminum plates using phase modulation |
title |
Improving ultrasonic imaging of aluminum plates using phase modulation |
spellingShingle |
Improving ultrasonic imaging of aluminum plates using phase modulation Tischer, Rafael M. [UNESP] Instantaneous Phase Pearson correlation coefficient Phase modulation Ul-trasonic imaging |
title_short |
Improving ultrasonic imaging of aluminum plates using phase modulation |
title_full |
Improving ultrasonic imaging of aluminum plates using phase modulation |
title_fullStr |
Improving ultrasonic imaging of aluminum plates using phase modulation |
title_full_unstemmed |
Improving ultrasonic imaging of aluminum plates using phase modulation |
title_sort |
Improving ultrasonic imaging of aluminum plates using phase modulation |
author |
Tischer, Rafael M. [UNESP] |
author_facet |
Tischer, Rafael M. [UNESP] Higuti, Ricardo T. [UNESP] Kitano, Cláudio [UNESP] Prado, Vander T. |
author_role |
author |
author2 |
Higuti, Ricardo T. [UNESP] Kitano, Cláudio [UNESP] Prado, Vander T. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) UTFPR (Univ. Tecnonógica Federal do Paraná) |
dc.contributor.author.fl_str_mv |
Tischer, Rafael M. [UNESP] Higuti, Ricardo T. [UNESP] Kitano, Cláudio [UNESP] Prado, Vander T. |
dc.subject.por.fl_str_mv |
Instantaneous Phase Pearson correlation coefficient Phase modulation Ul-trasonic imaging |
topic |
Instantaneous Phase Pearson correlation coefficient Phase modulation Ul-trasonic imaging |
description |
Conventional techniques for ultrasonic image beamforming use amplitude information to produce the im-ages. Although amplitude images can be obtained with high quality, they can also present limitations regarding dead zone, artifacts and detection of far reflectors. Coherence techniques based on signal phase result in images that can be used to in-dicate the presence of a defect or reflector, with improve-ments over those limitations. This work proposes the use of phase modulation in the excitation signal and the application of the Pearson correlation to the instantaneous phase image. Simulations and experimental tests in an aluminum plate with artificial defects using Lamb waves and a linear piezo-electric array were conducted. The frequency response of the transducers-plate system was considered, leading to images with reduced artifacts and dead zone, and improvement in lateral resolution when compared to amplitude and instantaneous phase images without modulation. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 2021-06-25T11:09:37Z 2021-06-25T11:09:37Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.29292/jics.v15i3.191 Journal of Integrated Circuits and Systems, v. 15, n. 3, p. 1-5, 2020. 1872-0234 1807-1953 http://hdl.handle.net/11449/208278 10.29292/jics.v15i3.191 2-s2.0-85098484517 2883440351895167 0000-0001-6320-755X |
url |
http://dx.doi.org/10.29292/jics.v15i3.191 http://hdl.handle.net/11449/208278 |
identifier_str_mv |
Journal of Integrated Circuits and Systems, v. 15, n. 3, p. 1-5, 2020. 1872-0234 1807-1953 10.29292/jics.v15i3.191 2-s2.0-85098484517 2883440351895167 0000-0001-6320-755X |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Integrated Circuits and Systems |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-5 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128926162092032 |