Shearography - the implementation of the principle into a mobile inspection system

摘要

Modern optical methods such as speckle shearography have attracted interest not only for laboratory investigations but also for applications on the factory floor because they can be sensitive, accurate, non-tactile and non-destructive. Optical inspection and measurement systems are more and more used in the entire manufacturing process. In this paper a complete measurement system on the basis of digital speckle-shearography is described. The system was successfully tested for the inspection of large-scale aircraft components and artworks with respect to material faults and production defects.