Experimental Mechanics

, Volume 19, Issue 7, pp 245–251 | Cite as

Complete automatic analysis of photoelastic fringes

A new method of evaluation of photoelastic-fringe pattern by means of modern image-processing technique is presented in this paper
  • R. K. Müller
  • L. R. Saackel


TV technology combined with a modern video-frame store is used to store the complete fringe pattern in digitized form in real time. A minicomputer connected to the store has direct access to any picture point in the store. In this manner, it is possible to evaluate the photoelastic-fringe pattern in the computer by special developed software.


Mechanical Engineer Fluid Dynamics Automatic Analysis Direct Access Develop Software 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Gerlach, H.-D., “Elektronische Hilfsmittel zur Automatisierung spannungsoptischer Messungen (Electronic Aids for the Automation of Photoelastic Measurements).”Doctoral thesis, University of Karlsruhe, FRG (1968).Google Scholar
  2. 2.
    Nurse, P. and Allison, I.M., “Automatic Acquisition of Photo-elastic Data,” J.B.C.S.A. Conference (1972).Google Scholar
  3. 3.
    Redner, S., “New Automatic Polariscope System,”Experimental Mechanics,14 (12),486–491 (1974).Google Scholar
  4. 4.
    Robert, A. and Vemet, J.L., “Application à la photoelasticimetrie de nouveaux procédes automatiques de détermination des axes et du dephasage d'un milieu birefringent,” Conference au Troisième Congrès International d'Analyse des Contraintes, Berlin (1966).Google Scholar
  5. 5.
    Redner, S., “Compensation Method Using Synchronized Polarizer-Analyzer Rotation,”Experimental Mechanics,16 (6),221–225 (1976).CrossRefGoogle Scholar
  6. 6.
    Saackel, L., “Kriterien zur Kompanentenauswahl für analoge und digitale Bilddatenauswerteanlagen” (Criteria for the Selection of Analog and Digital Image Processing Devices). Lecture at the Technische Akademie Esslingen, FRG (Nov. 1976).Google Scholar
  7. 7.
    Saackel, L., “Ein digitaler Halbleiterspeicher fur Fernsehbilder” (A New Digital Semiconductor Video Frame Store for Very Fast Image Processing). Conference of the German Society of Applied Optics, Nürnberg, FRG (1976).Google Scholar
  8. 8.
    Frocht, M.M., Photoelasticity,2,238,John Wiley & Sons,New York (1948).Google Scholar
  9. 9.
    Rosenfeld, A. and KAK, A.C.,Digital Picture Processing, Academic Press, New York (1976).Google Scholar

Copyright information

© Society for Experimental Mechanics, Inc. 1979

Authors and Affiliations

  • R. K. Müller
    • 1
  • L. R. Saackel
    • 1
  1. 1.Institute for Structural Model AnalysisUniversity of StuttgartStuttgartFRG

Personalised recommendations