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Proceedings Paper

Electronic speckle carrier shearography for automated deformation measurement
Author(s): Baishi Wang; Xi Zhang
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Paper Abstract

By combining the carrier method and electronic speckle shearography, the electronic speckle carrier shearography is realized with a PC-based image processing system. The carrier method is introduced for the unambiguous determination of the deformation fringe order and sign, as well as, for the fringe compensation. The object displacement is automatically generated with A sequence of image processing algorithm. This technique can be applied to both out-plane deformation and the deformation gradient measurement. Its successful application to the rigidity evaluation of the valve of the diesel engine is also presented.

Paper Details

Date Published: 10 December 1993
PDF: 9 pages
Proc. SPIE 2003, Interferometry VI: Techniques and Analysis, (10 December 1993); doi: 10.1117/12.165482
Show Author Affiliations
Baishi Wang, Shanghai Marine Diesel Engine Research Institute (China)
Xi Zhang, Shanghai Marine Diesel Engine Research Institute (China)

Published in SPIE Proceedings Vol. 2003:
Interferometry VI: Techniques and Analysis
Osuk Y. Kwon; Gordon M. Brown; Malgorzata Kujawinska, Editor(s)

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