The Paton Welding Journal, 2002, №10

2002 №10 (01)

2002 №10 (03)

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The Paton Welding Journal, 2002, #10, 6-12 pages

Automatic computer analysis of holographic interferograms in non-destructive quality control of materials and elements of structures

L.M. Lobanov, V.A. Pivtorak, V.V. Savitsky, E.M. Olejnik

E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
A system of computer analysis of holographic interferograms, based on numbering of holographic image of the object examined and use of a method of carrier fringes is presented. Effective method of their producing and a simple algorithm of processing interferograms are suggested. The method of carrier fringes makes it possible to solve the problem of indeterminacy of sign, which is usually available in interference fringe patterns. Examples of application of the developed method for control of defectness of elements of the honey-comb structure and flat samples are given.
Keywords: holographic interferometry, Fourier-transfom, quality control, brazed-welded honey-comb structure

References

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Suggested Citation

L.M. Lobanov, V.A. Pivtorak, V.V. Savitsky, E.M. Olejnik (2002) Automatic computer analysis of holographic interferograms in non-destructive quality control of materials and elements of structures. The Paton Welding J., 10, 6-12.

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