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

Digital speckle-pattern shearing interferometry

Not Accessible

Your library or personal account may give you access

Abstract

An application of digital image processing techniques to speckle-shearing interferometry is described. A present system consists of an image-shearing camera using a Fresnel biprism of small angles and a digital TV-image processing facility. This interferometer makes it easy to measure in quasi-real-time spatial derivatives of surface displacement and modal vibration amplitude of objects. A statistical theory is applied to analyze the formations of these fringes due to 3-D displacement. Interpretation of the result leads to conditions of maximum fringe contrast and the limitation of this technique. Experimental results in the three cases of slope of normal displacement, surface strain, and slope of vibration amplitude measurements are presented.

© 1980 Optical Society of America

Full Article  |  PDF Article
More Like This
Electronic speckle pattern interferometry using digital image processing techniques

Suezou Nakadate, Toyohiko Yatagai, and Hiroyoshi Saito
Appl. Opt. 19(11) 1879-1883 (1980)

Digital speckle pattern shearing interferometry: limitations and prospects

Mette Owner-Petersen
Appl. Opt. 30(19) 2730-2738 (1991)

Computer-aided speckle pattern interferometry

Suezou Nakadate, Toyohiko Yatagai, and Hiroyoshi Saito
Appl. Opt. 22(2) 237-243 (1983)

References

You do not have subscription access to this journal. Citation lists with outbound citation 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

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 (7)

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

Equations (24)

You do not have subscription access to this journal. Equations 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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved