Development of a piezoelectric transducer coupling system for structural health monitoring applications

dc.contributor.authorGiroto, Pedro Cerri [UNESP]
dc.contributor.authorViera, Martin Antonio Aulestia [UNESP]
dc.contributor.authorJunior, Pedro Oliveira [UNESP]
dc.contributor.authorAlexandre, Felipe Aparecido [UNESP]
dc.contributor.authorDotto, Fabio Romano [UNESP]
dc.contributor.authorGotz, Reinaldo [UNESP]
dc.contributor.authorLopes, Thiago Glissoi [UNESP]
dc.contributor.authorAguiar, Paulo Roberto [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-12T01:12:25Z
dc.date.available2020-12-12T01:12:25Z
dc.date.issued2019-10-01
dc.description.abstractPiezoelectric transducers have been widely used in structural health monitoring (SHM) frameworks. Recently, preliminary applications of these devices have emerged in the field of ultrasonic waves based on transmitter/receiver configuration. However, a practical problem has hindered its application to real-world structures due to the capacitive effect of the piezoelectric transducer. In other words, the transmitted chirp signal is not continuous in time domain due to losses in the signal amplitude. In addition, after applying fast Fourier transform (FFT) to this non-continuous time-domain signal, frequency losses are observed. Nevertheless, such frequencies are important for optimum sensitivity and coverage in damage detection. Owing to that, the goal of the present work was to design, implement, and test a coupling system, which will be used as a buffer to keep the amplitude of the chirp signal transmitted to the piezoelectric transducer. To achieve this, a series of simulations were performed for different electronic power supplies. At the end, the ± 12 V power supply was selected for the final prototype buffer coupling system. As a result, it was possible to keep the transmitted chirp signal amplitude as close to an ideal chirp signal as possible regarding to the chirp signal without buffer. The proposed system provides experience for future research of piezoelectric transducers and can be included in the calibration procedure of ultrasonic waves based on transmitter/receiver configuration for SHM applications.en
dc.description.affiliationDepartment of Electrical Engineering São Paulo State University (UNESP)
dc.description.affiliationUnespDepartment of Electrical Engineering São Paulo State University (UNESP)
dc.format.extent538-543
dc.identifierhttp://dx.doi.org/10.1109/IESTEC46403.2019.00102
dc.identifier.citationProceedings - 2019 7th International Engineering, Sciences and Technology Conference, IESTEC 2019, p. 538-543.
dc.identifier.doi10.1109/IESTEC46403.2019.00102
dc.identifier.scopus2-s2.0-85078134147
dc.identifier.urihttp://hdl.handle.net/11449/198419
dc.language.isospa
dc.relation.ispartofProceedings - 2019 7th International Engineering, Sciences and Technology Conference, IESTEC 2019
dc.sourceScopus
dc.subjectAutomation
dc.subjectBuffer
dc.subjectLow cost system
dc.subjectPiezoelectric transducers
dc.subjectSHM
dc.titleDevelopment of a piezoelectric transducer coupling system for structural health monitoring applicationsen
dc.typeTrabalho apresentado em evento

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