speckle field
3.Laser speckle contrast imaging (LSCI) provides full-field and real-time investigation of microcirculation blood flow in vivo with high spatiotemporal resolution, including several advantages, such as non-contact, noninvasive and high speed imaging.
4.Math.and Physics Department,Yanshan University,Qinhuangdao 066004)[/align][align=left][b]Abstract[/b]:Through the pictures taken by means of laser speckle on the metal material weldment,we can obtain double-exposed displacement patterns at a temperature range.By point-to-point analysis heat displacement field at the welding points can be measured,and the distribution of thermal strain and thermal stress can be obtained.As a result,the flaws at welding points can be measured through experiments.
