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Proceedings Paper

Computerization of Data Deduction in Shearography
Author(s): D. W. Templeton; Y. Y. Hung
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Paper Abstract

This paper presents some preliminary success in computerizing data deduction in shearography. Computeriza is made possible by the introduction of a fringe carrier technique which removes the ambiguities in fringe interpretation. The technique is based on superposing a set of carrier fringes upon the deformation fringes. The resulting fringe pattern has monotonically increasing fringe orders, thus allowing the fringe orders to be determined in a straightforward mariner and without ambiguity. It is demonstrated that the data deduction process can be computerized. By digitizing the deformed carrier fringe pattern, the displacement derivatives can be automatically deduced by means of digital image processing.

Paper Details

Date Published: 17 February 1987
PDF: 8 pages
Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); doi: 10.1117/12.941683
Show Author Affiliations
D. W. Templeton, Oakland University (United States)
U.S. Army Tank - Automotive Command (United States)
Y. Y. Hung, Oakland University (United States)

Published in SPIE Proceedings Vol. 0814:
Photomechanics and Speckle Metrology
Fu-Pen Chiang, Editor(s)

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