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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 25, Iss. 20 — Oct. 15, 1986
  • pp: 3781–3784

Fringe compensation in speckle interferometry: application to nondestructive testing

C. Joenathan, A. R. Ganesan, and Rajpal S. Sirohi  »View Author Affiliations


Applied Optics, Vol. 25, Issue 20, pp. 3781-3784 (1986)
http://dx.doi.org/10.1364/AO.25.003781


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Abstract

Speckle interferometry when used for NDT suffers from overcrowding of fringes even for small loads, thereby making defect detection impossible. A fringe compensation technique is presented in this paper. The technique employs two objects, identical except for the defect in one, that are loaded in the same way resulting in full compensation except in the neighborhood of the defect. Theory and experimental results are presented.

© 1986 Optical Society of America

History
Original Manuscript: February 7, 1986
Published: October 15, 1986

Citation
C. Joenathan, A. R. Ganesan, and Rajpal S. Sirohi, "Fringe compensation in speckle interferometry: application to nondestructive testing," Appl. Opt. 25, 3781-3784 (1986)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-25-20-3781

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