Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/94024
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dc.contributor.authorSingh, Vijay Rajen
dc.contributor.authorAsundi, Ananden
dc.date.accessioned2011-10-10T06:18:22Zen
dc.date.accessioned2019-12-06T18:49:26Z-
dc.date.available2011-10-10T06:18:22Zen
dc.date.available2019-12-06T18:49:26Z-
dc.date.copyright2006en
dc.date.issued2006en
dc.identifier.citationSingh, V. R., & Anand, A. (2006). Advances in dynamic metrology using in-line digital holographic Interferometry. Paper presented at the Interferometry: Applications, San Diego.en
dc.identifier.urihttps://hdl.handle.net/10356/94024-
dc.description.abstractIn this paper a lensless in-line digital holographic microscope is presented as interferometric applications for dynamic measurements. A diverging beam is used to illuminate the object to get the required magnification. In particular, time average in-line digital holographic interferometry is studied for vibration measurements of a smaller membrane. The sensitivities of the numerically reconstructed amplitude and phase information are studied with the distance from object to the CCD, during hologram recording. It is shown that, the increase in object recording distance results the increase in the sensitivity of the Bessel type of fringes representing the vibration amplitude information, while it shows the opposite behaviour for phase information which represent the mean deformation fringes. To explain this phenomenon, the samplings of the interference of object and reference beams, and of the diffracted speckled wavefront from the object are individually studied. A double exposure approach is used for the suppression of noise from real image wave caused by zero-order term and twin image waves because of in-line geometry. The experiment is performed for the study of vibration behaviour of harmonically excited aluminium membranes of 5 mm in size and results are presented.en
dc.format.extent8 p.en
dc.language.isoenen
dc.rights© 2006 SPIE. This paper was published in Proc. SPIE 6293 and is made available as an electronic reprint (preprint) with permission of SPIE. The paper can be found at: [DOI: http://dx.doi.org/10.1117/12.679799].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.subjectDRNTU::Engineering::Mechanical engineeringen
dc.titleAdvances in dynamic metrology using in-line digital holographic Interferometryen
dc.typeConference Paperen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen
dc.contributor.conferenceInterferometry : Applications (13th : 2006 : San Diego, US)en
dc.identifier.doi10.1117/12.679799en
dc.description.versionPublished versionen
dc.identifier.rims143365en
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