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Digital determination of photoelastic birefringence using two wavelengths

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Abstract

A new approach for digital determination of photoelastic birefringence is proposed. The relationships between the intensity values and the fringe orders of two wavelengths are derived. This scheme allows for automatic determination of fringe orders of a full-field photoelastic fringe pattern without using zero-order fringes in the fringe pattern. The usefulness of this method was demonstrated on two experimental fringe patterns with different wavelengths.

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Authors and Affiliations

  1. Department of Mechanical Engineering, National Cheng Kung University, 701, Tainan, Taiwan, Republic of China

    T. Y. Chen (Professor)

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  1. T. Y. Chen
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Chen, T.Y. Digital determination of photoelastic birefringence using two wavelengths. Experimental Mechanics 37, 232–236 (1997). https://doi.org/10.1007/BF02317412

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  • DOI: https://doi.org/10.1007/BF02317412

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