Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Real-time optical differentiation for moire interferometry

Not Accessible

Your library or personal account may give you access

Abstract

Real-time methods for differentiation of in-plane displacement fields produced by the moire interferometry technique are introduced. Two approaches are developed: (1) optical shearing of displacement patterns and (2) superposition of two lateral shear interferograms of wavefronts from 2 diffraction orders of the specimen grating. Coherence problems are circumvented by polarization effects. In both cases additive-type moire fringes give the map of displacement derivatives of the object under load. The issue of carrier patterns and extraneous fractional fringe order is clarified. Experimental verification of the principle is presented.

© 1987 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical differentiation of displacement patterns using moire interferometry

Krzysztof Patorski and Matgorzata Kujawinska
Appl. Opt. 24(18) 3041-3048 (1985)

Shearing interferometry and the moire method for shear strain determination

Krzysztof Patorski
Appl. Opt. 27(16) 3567-3572 (1988)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved