Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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The Theoretical Analysis about the Phase-Shifting Technique of Shearography Using Waveeplates

파장판을 이용한 Shearography의 위상천이기술에 대한 이론적 고찰

  • 김수길 (호서대학교 전기정보통신공학부)
  • Published : 2004.11.01
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Abstract

We presented the method to obtain four speckle interferograms with relative phase shift of $\pi$/2 by passive devices such as waveplate and polarizer, calculate the phase at each point of the speckle interferogram in shearography using Wollaston prism, and theoretically demonstrated the feasibility of the unposed method by Jones matrix.

본 논문에서는 Wollaston prism을 이용한 Shearography에서 수동소자인 두 개의 Waveplate와 편광판의 조합을 통해 각각 90도의 위상천이를 가지는 4개의 스펙클 패턴을 얻고, 이로부터 스펙클의 각 지점에서의 위상을 얻을 수 있는 방법을 제시하고, Jones 행렬을 이용하여 이론적으로 입증하였다.

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References

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