Vibration amplitude mapping by stroboscopic structured light projection

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dc.contributor.authorRIBEIRO, I.L.F.pt_BR
dc.contributor.authorCARVALHO, G.L.pt_BR
dc.contributor.authorDIB, L.F.G.pt_BR
dc.contributor.authorBARBOSA, E.A.pt_BR
dc.contributor.authorWETTER, N.U.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2023-04-20T13:31:25Z
dc.date.available2023-04-20T13:31:25Z
dc.date.issued2023pt_BR
dc.description.abstractIn this work a method to evaluate the distribution of vibration amplitudes of objects was demonstrated, combining for the first time oblique structured light projection, stroboscopic illumination and fringe evaluation. The light pattern was formed by straight and parallel fringes produced by a slightly misaligned Twyman–Green interferometer illuminated by a 40-mW, 650-nm diode laser. Stroboscopic illumination was achieved by driving the laser with a PWM signal with the same frequency than that of the vibrating object. By evaluating the fringes with phase stepping and phase unwrapping procedures, the amplitude mapping of a formica bar and circular rubber membranes was performed. By averaging the fringe position over the light pulse duration a correction ratio between the actual phase and the measured phase was obtained as a function of the pulse duty cycle, and the dependence of the fringe visibility on the duty cycle was studied. The experiments showed that relatively large amplitudes in a range from tens of millimeters up to few millimeters can be measured.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipIDCNPq: 103693/2022-0pt_BR
dc.format.extent1-9pt_BR
dc.identifier.citationRIBEIRO, I.L.F.; CARVALHO, G.L.; DIB, L.F.G.; BARBOSA, E.A.; WETTER, N.U. Vibration amplitude mapping by stroboscopic structured light projection. <b>Optics Communications</b>, v. 531, p. 1-9, 2023. DOI: <a href="https://dx.doi.org/10.1016/j.optcom.2022.129219">10.1016/j.optcom.2022.129219</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/33991.
dc.identifier.doi10.1016/j.optcom.2022.129219pt_BR
dc.identifier.issn0030-4018pt_BR
dc.identifier.orcid0000-0002-9379-9530pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9379-9530
dc.identifier.percentilfi44.5pt_BR
dc.identifier.percentilfiCiteScore65.00pt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/33991
dc.identifier.vol531pt_BR
dc.relation.ispartofOptics Communicationspt_BR
dc.rightsopenAccesspt_BR
dc.subjectoptical equipment
dc.subjectevaluation
dc.subjectvibrational states
dc.subjectmechanical vibrations
dc.titleVibration amplitude mapping by stroboscopic structured light projectionpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorNIKLAUS URSUS WETTER
ipen.codigoautor919
ipen.contributor.ipenauthorNIKLAUS URSUS WETTER
ipen.date.recebimento23-04
ipen.identifier.fi2.4pt_BR
ipen.identifier.fiCiteScore5.0pt_BR
ipen.identifier.ipendoc29615pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi25.00 - 49.99
ipen.type.genreArtigo
relation.isAuthorOfPublication464db0c6-6072-480b-b899-81848893f7eb
relation.isAuthorOfPublication.latestForDiscovery464db0c6-6072-480b-b899-81848893f7eb
sigepi.autor.atividadeWETTER, N.U.:919:910:Npt_BR
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