QUANTITATIVE MEASUREMENT METHOD OF OUT-OF-PLANE DEFORMATION USING THE SHEAROGRAPHY

摘要

A quantitative measurement method of out-of-plane deformation using shearography is provided to enhance industrial application of the shearography by quantitatively measuring the out-of-plane deformation generated at an article. A quantitative measurement method of out-of-plane deformation using shearography includes the steps of: obtaining an image before deformation of an article by the shearography; obtaining an image after the deformation of the article by the shearography; and measuring the out-of-deformation by numerically integrating with parallel translation values of the images before/after the deformation after subtracting the images before/after the deformation. ESPI(Electronic Speckle Pattern Interferometry) is stably applied in a non-destructive measurement method by using the shearography.