کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
734875 | 893542 | 2013 | 7 صفحه PDF | دانلود رایگان |
In this paper we present a high speed speckle interferometry system for the experimental analysis of transient and dynamic phenomena. The system is based on an out-of-plane continuous wave speckle interferometry setup and integrates a fast camera that allows acquisition rates of over 26,000 frames/s in a reduced window (160×60 pixels). We obtain thus series of temporally sampled, full spatial data fields of surface deformation during a given time interval. The data processing algorithms may concern 2D data fields or one-dimensional temporal histories of individual pixels.
► High-speed speckle interferometry measurements of dynamic deformation.
► Characterization of damped and multi-frequency vibrations.
► 4-step phase stepped data processed with 1-, 2- and 4-step algorithms.
► Two-dimensional and pixelwise data processing.
Journal: Optics and Lasers in Engineering - Volume 51, Issue 4, April 2013, Pages 453–459