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Two-wavelength microscopic speckle interferometry using colour CCD camera
Single wavelength microscopic speckle interferometry is widely used for deformation, shape and non-destructive testing (NDT) of engineering structures. However the single wavelength configuration fails to quantify the large ...
Use of two wavelengths in microscopic TV holography for nondestructive testing
Single wavelength TV holography is a widely used whole-field noncontacting optical method for nondestructive testing (NDT) of engineering structures. However, with a single wavelength configuration, it is difficult to ...