Experimental Mechanics

, Volume 16, Issue 12, pp 479–480 | Cite as

The determination of the refractive index of a photoelastic specimen by immersion technique

A simple and quick method for the determination of the refractive index of specimen of nonoptical quality is described
  • A. Thomas


Conventional methods for determining the refractive index demand specimens of optical quality, the preparation of which is often very difficult. An indirect determination by matching the refractive indices of specimen and immersion liquid is a practical alternative for photoelastic specimen of nonoptical quality. An experimental arrangement used for this technique and observations made while matching the refractive indices of three different specimens are presented.


Refractive Index Mechanical Engineer Fluid Dynamics Conventional Method Experimental Arrangement 
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  1. 1.
    Nisida, M. andSaito, H., “A New Interferometric Method of Two-dimensional Stress Analysis,”Experimental Mechanics,4 (4),866 (1964).Google Scholar
  2. 2.
    Faick, C. A. andFonoroff, B., “A Precision Apparatus for the Rapid Determination of Indices of Refraction and Dispersion by Immersion,”J. of the Optical Soc. of America,34 (6),330–336 (1944).Google Scholar

Copyright information

© Society for Experimental Mechanics, Inc. 1976

Authors and Affiliations

  • A. Thomas
    • 1
  1. 1.Central Instruments and Services LaboratoryIndian Institute of ScienceBangaloreIndia

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