Skip to main content
SpringerLink
Log in

Moiré interferometry with ±45-deg gratings

  • Published:
Experimental Mechanics Aims and scope Submit manuscript

Abstract

Specimen gratings with rulings oriented +45 deg and −45 deg to they axis can be used to determine theu andv displacement fields, i.e., the displacements in thex andy directions. The fringe patterns are identical to those obtained with (X) and (Y) specimen gratings. The analysis leading to this conclusion is presented. A vector quantity related to the fringe gradient in the interference pattern is defined and found effective for visualizing and describing the image-forming rays. Advantages relate to construction of apparatus for moiré interferometry.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. McDonach, A., McKelvie, J. andWalker, C.A., “Stress Analysis of Fibrous Composites Using Moiré Interferometry,”Opt. and Lasers in Eng.,1,85–105 (1980).

    Google Scholar 

  2. Post, D., “Developments in Moiré Interferometry,”Opt. Eng.,21 (3),458–467 (May/June 1982).

    Google Scholar 

  3. Walker, C.A., McKelvie, J. andMcDonach, A., “Experimental Study of Inelastic Strain Patterns in a Model of a Tube-plate Ligament Using an Interferometric Moiré Technique,”Experimental Mechanics,23 (1),21–29 (March 1983).

    Google Scholar 

  4. Post, D., “Moiré Interferometry at VPI & SU,”Experimental Mechanics,23 (2),203–210 (June 1983).

    Google Scholar 

  5. Guild, J., “The Interference Systems of Crossed Diffraction Gratings, Clarendon Press, Oxford (1956).

    Google Scholar 

  6. Basehore, M.L. andPost, D., “Moiré Method for In-plane and Out-of-plane Displacement Measurements,”Experimental Mechanics,21 (9),321–328 (Sept. 1981).

    Article  Google Scholar 

  7. Walker, C.A. andMcKelvie, J., “A Practical Multiplied Moiré System,”Experimental Mechanics,18 (8)316–320 (Aug. 1978).

    Article  Google Scholar 

  8. Rogers, G.L., “A Geometrical Approach to Moiré Pattern Calculations,”Opt. Acta,24 (1),1–13 (1977).

    Google Scholar 

  9. Durelli, A.J. andParks, V.J., Moiré Analysis of Strain, Prentice-Hall, Inc., Englewood Cliffs, NJ (1970).

    Google Scholar 

  10. Sciammarella, C.A. andDurelli, A.J., “Moiré Fringes as a Means of Analyzing Strains,”Proc. ASCE, J. Eng. Mech. Div.,89 (EMI),51–74 (1961).

    Google Scholar 

  11. Stetson, K.A., “Homogeneous Deformations: Determination by Fringe Vectors in Hologram Interferometry,”Appl. Opt.,14 (9),2256–2259 (Sept. 1975).

    Google Scholar 

  12. Post, D., “Moiré Fringe Multiplication with a Non-Symmetrical Doubly-Blazed Reference Grating,”Appl. Opt.,10 (4),901–907 (April 1971).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Engineering Science and Mechanics, Virginia Polytechnic Institute of State University, 24061, Blacksburg, VA

    R. Czarnek (Graduate Student) & D. Post (Professor)

Authors
  1. R. Czarnek
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. D. Post
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Czarnek, R., Post, D. Moiré interferometry with ±45-deg gratings. Experimental Mechanics 24, 68–74 (1984). https://doi.org/10.1007/BF02323209

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02323209

Keywords

Search

Navigation