Abstract
A new method for the deformation analysis by the image processing using the Gaussian curve method is proposed in laser holographic interferometry. This method consists in determining the location and the broadness of a fringe pattern of a hologram by using the main axis and the standard deviation of a Gaussian function fitted to the intensity distribution curve of the fringe pattern. The location and the broadness of fringe patterns of a cantilever beam were determined by the Gaussian curve method. The deflection determined by this method agreed closely with the theoretical value. The deflection angle θ of a loaded cantilever beam decreases with the increasing standard deviation of the Gaussian function, called the Gaussian curve parameter (GCP) αα, and it is given by θ=5.11×10-5α-0.822
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