Detection of internal defects using phas
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Avi Twitto; Joseph Shamir; Alexander Bekker; Amos Notea
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Article
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1996
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Elsevier Science
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English
⚖ 769 KB
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