A STUDY ON ELECTRONIC SHEARING SPECKLE TECHNIQUE

In this paper, a new method of deformation measurement is described. By means of the laser shearing speckle interference as the mask of deformation information and with video, electronic signal processing technique combined with the micro-computer, the electronic interferometry is realized. The visibility of the strain fringe pattern produced by the electronic interference from deformation information is demonstrated. The electronic interferometry hardware and software are studied and designed. The basic sy...