Abstract
The formation of speckles while illuminating an object with a laser beam is described. Different types of speckle interferometers are presented to measure out-of-plane, in-plane or derivatives of object displacements. The set-up of an electronic speckle interferometer is shown and examples of applications are given ranging from deformation analysis of stressed mechanical components, the detection of internal flaws in foam parts or tires to the analysis of stationary vibrations of components.
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Donges, A., Noll, R. (2015). Speckle Metrology. In: Laser Measurement Technology. Springer Series in Optical Sciences, vol 188. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-43634-9_8
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DOI: https://doi.org/10.1007/978-3-662-43634-9_8
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