OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 13 — May. 1, 2000
  • pp: 2043–2053

Model for quantifying photoelastic fringe degradation by imperfect retroreflective backings

Deonna Woolard and Mark Hinders  »View Author Affiliations


Applied Optics, Vol. 39, Issue 13, pp. 2043-2053 (2000)
http://dx.doi.org/10.1364/AO.39.002043


View Full Text Article

Enhanced HTML    Acrobat PDF (1387 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

In any automated algorithm for interpreting photoelastic fringe patterns it is necessary to understand and quantify sources of error in the measurement system. We have been considering how the various components of the coating affect the photoelastic measurement, because this source of error has received fairly little attention in the literature. Because the reflective backing is not a perfect retroreflector, it does not preserve the polarization of light and thereby introduces noise into the measurement that depends on the angle of obliqueness and roughness of the reflective surface. This is of particular concern in resolving the stress tensor through the combination of thermoelasticity and photoelasticity where the components are sensitive to errors in the principal angle and difference of the principal stresses. We have developed a physical model that accounts for this and other sources of measurement error to be introduced in a systematic way so that the individual effects on the fringe patterns can be quantified. Simulations show altered photoelastic fringes when backing roughness and oblique incident angles are incorporated into the model.

© 2000 Optical Society of America

OCIS Codes
(100.5010) Image processing : Pattern recognition
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(240.0240) Optics at surfaces : Optics at surfaces
(260.1440) Physical optics : Birefringence

History
Original Manuscript: August 25, 1999
Revised Manuscript: January 4, 2000
Published: May 1, 2000

Citation
Deonna Woolard and Mark Hinders, "Model for quantifying photoelastic fringe degradation by imperfect retroreflective backings," Appl. Opt. 39, 2043-2053 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-13-2043

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

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

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

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

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited