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Modulation analysis of phase-shifted holographic interferograms

✍ Scribed by X.-Y. Su; A.M. Zarubin; G. von Bally

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
733 KB
Volume
105
Category
Article
ISSN
0030-4018

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Phase shifting holographic interferometry is shown to be a useful tool for detection of internal defects in materials by observing strain anomalies in a stressed object. The postrecording signal processing includes smoothing of the measured deformation by means of data polynomial fitting, a derivati