Determination of displacements, strain, and rotations from holographic interferometry data using a 2-D fringe order function

Armando Albertazzi Jr.

doi:10.1117/12.57461

1 December 1991 Determination of displacements, strain, and rotations from holographic interferometry data using a 2-D fringe order function

Armando Albertazzi Jr.

Author Affiliations +

Proceedings Volume 1554, Second International Conference on Photomechanics and Speckle Metrology; (1991) https://doi.org/10.1117/12.57461
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

This work presents an approach to compute, at the same time, the displacement field and its derivatives from a two-dimensional representation of the fringe order function. Those concepts are very convenient to be used with digital image processing systems. Some simplifications of those general equations for particular cases are discussed. The complete displacement field and its derivatives, strains and rotations are measured in a disc under diametrical compression as an example of application. A digital image filtering technique, for speckle noise reduction, is also introduced.

Citation Download Citation

Armando Albertazzi Jr. "Determination of displacements, strain, and rotations from holographic interferometry data using a 2-D fringe order function", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); https://doi.org/10.1117/12.57461

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