Experimental Investigation of Speckle Pattern by Laser Scribing for Digital Image Correlation
نویسندگان
چکیده
منابع مشابه
Quality assessment of speckle patterns for digital image correlation
Digital image correlation (DIC) is an optical-numerical full-field displacement measuring technique, which is nowadays widely used in the domain of experimental mechanics. The technique is based on a comparison between pictures taken during loading of an object. For an optimal use of the method, the object of interest has to be covered with painted speckles. In the present paper, a comparison i...
متن کاملDigital Image Correlation combined with Electronic Speckle Pattern Interferometery for 3D Deformation Measurement in Small Samples
The small size of mesoand microelectromechanical systems (MEMS) devices presents several challenges for full-field deformation measurements. A hybrid system combining Digital Image Correlation (DIC) for in-plane deformation and Electronic Speckle Pattern Interferometry (ESPI) for out-of-plane deformation measurements has been developed for working with these small size scales. Measurement of th...
متن کاملAnalysis of speckle patterns for deformation measurements by digital image correlation
Digital Image Correlation (DIC) – also referred to as white light speckle technique – is an optical-numerical full-field measuring technique, which offers the possibility to determine in-plane displacement fields at the surface of objects under any kind of loading. For an optimal use of the method, the object of interest has to be covered with a speckle pattern. The present paper studies the ef...
متن کاملEquivalence of digital image correlation criteria for pattern matching.
In digital image correlation (DIC), to obtain the displacements of each point of interest, a correlation criterion must be predefined to evaluate the similarity between the reference subset and the target subset. The correlation criterion is of fundamental importance in DIC, and various correlation criteria have been designed and used in literature. However, little research has been carried out...
متن کاملInvestigation of optimal digital image correlation patterns for deformation measurement
Digital image correlation (DIC) relies on the visible surface features of a specimen to measure deformation. When the specimen itself has little to no visible features, a pattern is applied to the surface which deforms with the specimen and acts as artificial surface features. Since recent pattern application methods, e.g., micro-stamping [1] and lithography [2] allow for the application of hig...
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ژورنال
عنوان ژورنال: Journal of Laser Micro/Nanoengineering
سال: 2017
ISSN: 1880-0688
DOI: 10.2961/jlmn.2017.02.0009