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Proceedings Paper

Coherent Information Processing Of White Light Speckle Sandwich
Author(s): Chen Shiming; Wang Rupeng; Xu Zhu
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Paper Abstract

A sandwich technique is presented. Two white light speckle patterns corresponding to the two different loading states of the structure are recorded. Analysis can be carried on in the Fourier transformation optical system as well as the point diffraction optical system. The coherent conditions of the speckle sandwich patterns are derived. The mismatch of the two corresponding speckle patterns can be made use of to introduce the linear photo-carrier with which the sensitivity and accuracy of the white light speckle are improved, meanwhile the measurement scale is enlarged.

Paper Details

Date Published: 14 December 1988
PDF: 4 pages
Proc. SPIE 0955, Industrial Laser Interferometry II, (14 December 1988); doi: 10.1117/12.947666
Show Author Affiliations
Chen Shiming, Shanghai Urban Construction Institute (China)
Wang Rupeng, Shanghai Urban Construction Institute (China)
Xu Zhu, Nanjing Institute of Technology (China)


Published in SPIE Proceedings Vol. 0955:
Industrial Laser Interferometry II
Y.Y. Hung; Ryszard J. Pryputniewicz, Editor(s)

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