Vol.6, No1-2, 2006, pp. 7-14
UDC 620.171.5:535.51

Thanks to the development of computers and digital cameras holographic interfero-metry is intensively applied in industrial metrology. Based on laser techniques and inter-ferometry the speckle interferometry, shearography, and moiré interferometry have been developed. The paper shortly presents these methods and their application as contactless method for non-destructive testing.

Keywords: holography, holographic interferometry, speckle interferometry, contactless testing