本文主要阐述了新型激光散斑技术,即散斑剪切技术,在精密计量,无损检验中的应用。通过对悬臂薄板弯曲变形的研究,充分证明该技术用于工业现场优于全息干涉法和Moire’法,具有广泛的潜力和经济价值。 本研究采用白光信息处理法来提取散斑图形中的条纹图形,比采用常规的激光信息处理法精度高得多,且经济、方便因而具有推广价值。 This paper mainly expounds the new laser speckle speckle speckle shearing technology used in precision metrology and non-destructive testing. Through the study of the bending deformation of cantilever thin plates, it has been proved that this technique has a wide range of potential and economic value over industrial holography and Moire ’method. In this study, white light information processing was used to extract streak patterns in speckle pattern, which was much more accurate than the conventional laser information processing method and was economical and convenient to popularize.