Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2004.11a
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- Pages.772-776
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- 2004
Quantitative Determination of Out-of-plane Displacement by Shearography
Shearography의 1차도함수로부터 면외변위의 정량적 추출
- Published : 2004.11.03
Abstract
The paper describes the quantitative determination of out-of-plane displacement from result of Shearogrpahy, which can measure the first-order partial derivative of out-of-plane displacement directly. However, the differential sensitivity of Shearography is related to the amount of shearing, which is manually adjustable in optical interferometer and affects the quantitative determination. The relationship between those is inspected by comparing ESPI with Shearography. From the result, the amount of shearing plays a modulation factor of out-of-plane displacement and small amount of shearing gives good agreement with out-of-plane displacement.
Keywords
- Shearography;
- Electronic Speckle Pattern Interferometry;
- Out-of-plane displacement;
- Amount of shearing
- 전자전단간섭법;
- 전자처리 스페클패턴 간섭법;
- 면외변위;
- 전단량;