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Proceedings Paper

The characteristics of Moire signals in diffraction from super-imposed dual gratings
Author(s): Bin Du
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Paper Abstract

It is well known that the characteristics of Moire signals: Contrast(C), Sinusoidally(S), and the sensitivity of the light intensity to the variation of air gap between the two gratings(H) are the main factors affecting the accuracy of dual gratings measuring system. The paper presents a general formulation concerning the diffraction light intensity from dual gratings, and discusses the characteristics of diffraction pattern.

Paper Details

Date Published: 1 July 1990
PDF: 2 pages
Proc. SPIE 1230, International Conference on Optoelectronic Science and Engineering '90, 12302D (1 July 1990); doi: 10.1117/12.2294722
Show Author Affiliations
Bin Du, Shanghai Institute of Mechanical Engineering (China)

Published in SPIE Proceedings Vol. 1230:
International Conference on Optoelectronic Science and Engineering '90
DaHeng Wang, Editor(s)

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