Improving ultrasonic imaging of aluminum plates using phase modulation

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUTFPR (Univ. Tecnonógica Federal do Paraná)-
Autor(es): dc.creatorTischer, Rafael M. [UNESP]-
Autor(es): dc.creatorHiguti, Ricardo T. [UNESP]-
Autor(es): dc.creatorKitano, Cláudio [UNESP]-
Autor(es): dc.creatorPrado, Vander T.-
Data de aceite: dc.date.accessioned2022-02-22T00:52:58Z-
Data de disponibilização: dc.date.available2022-02-22T00:52:58Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.29292/jics.v15i3.191-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/208278-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/208278-
Descrição: dc.descriptionConventional 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.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionDepartment of Electrical Engineering UNESP (Univ. Estadual Paulista)-
Descrição: dc.descriptionDepartment of Electrical Engineering UTFPR (Univ. Tecnonógica Federal do Paraná)-
Descrição: dc.descriptionDepartment of Electrical Engineering UNESP (Univ. Estadual Paulista)-
Descrição: dc.descriptionCAPES: 001-
Formato: dc.format1-5-
Idioma: dc.languageen-
Relação: dc.relationJournal of Integrated Circuits and Systems-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectInstantaneous Phase-
Palavras-chave: dc.subjectPearson correlation coefficient-
Palavras-chave: dc.subjectPhase modulation-
Palavras-chave: dc.subjectUl-trasonic imaging-
Título: dc.titleImproving ultrasonic imaging of aluminum plates using phase modulation-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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