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dc.contributor.authorMESKELL, CRAIGen
dc.contributor.editorGlynn T.J.en
dc.date.accessioned2010-04-28T17:00:01Z
dc.date.available2010-04-28T17:00:01Z
dc.date.created5 Septemberen
dc.date.issued2002en
dc.date.submitted2002en
dc.identifier.citationToal, Vincent; Rice, Henry; Meskell, Craig; Armstrong, Carol; Bowe, Brian, Evaluation of high frequency vibrations using electronic speckle pattern interferometry, Proceedings of SPIE - The International Society for Optical Engineering, Opto-Ireland 2002: Optics and Photonics Technologies and Applications, Galway, Ireland, 5 September, Glynn T.J., 4876, 2, 2002, 1054-1063en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/39277
dc.descriptionPUBLISHEDen
dc.description.abstractThe available techniques for the study of high frequency vibration using electronic speckle pattern interferometry (ESPI) are briefly surveyed. We concentrate on two methods in particular. The first is a straightforward approach in which a CCD camera is used having a frame rate of at least twice the highest vibration frequency so that the sampling criterion is satisfied. The images are processed and analysed off-line. Digital phase shifting can be also implemented for detailed fringe analysis. The second approach is time-averaged ESPI in which the Bessel fringe function can be analysed in real time by modulating the optical path difference in the interferometer. This can be done either by using a vibrating component or, as in the present work, by direct modulation of the laser wavelength at the frequency of the vibrating mode.en
dc.format.extent1054-1063en
dc.language.isoenen
dc.relation.ispartofseries4876en
dc.relation.ispartofseries2en
dc.rightsYen
dc.subjectOptics
dc.titleEvaluation of high frequency vibrations using electronic speckle pattern interferometryen
dc.title.alternativeProceedings of SPIE - The International Society for Optical Engineeringen
dc.title.alternativeOpto-Ireland 2002: Optics and Photonics Technologies and Applicationsen
dc.typeConference Paperen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/cmeskellen
dc.identifier.rssinternalid27374en


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