Method for calibration, testing, analysis and feedback of reference parameter, involves observing or imaging two patterns during actual expansion and deformation of object, where patterns represent one of deformation or expansion conditions

摘要

The method involves observing or imaging two speckle patterns, grid patterns, or other patterns during an actual expansion and deformation of an object, where the patterns represent one of the deformation or expansion conditions. The conditions are derived from a theory of artificially produced expansion field or deformation condition. The patterns are imaged, projected, carried or applied on the surface of a reference body at different areas, and are measured, particularly by the geometric optical reference measurement systems. An independent claim is included for a device for calibration, testing, analysis and for the feedback of reference parameters of the expansion and deformation measuring characteristics of an image correlation system.