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Development of the Integrated Measuring System of Strain Distribution and Defect using ESPI & Shearography
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  • Development of the Integrated Measuring System of Strain Distribution and Defect using ESPI & Shearography
  • Development of the Integrated Measuring System of Strain Distribution and Defect using ESPI & Shearography
저자명
Kim. Hyun-Jun,Gweon. Dae-Gab,Kim. Hyun-Chul
간행물명
International journal of precision engineering and manufacturing
권/호정보
2012년|13권 11호|pp.1931-1939 (9 pages)
발행정보
한국정밀공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

The non-destructive, non-contact measurement techniques of displacement and defect using laser speckle interferometry have the advantages of sensitivity, non-destructiveness and real-time measurement. ESPI (Electronic Speckle Pattern Interferometry) and Shearography are representative techniques using laser speckle interferometry. Both of them have been studied independently owing to physically different nature of optics and been tried to apply to the industrial field from 1970. But it is yet to be succeeded for the system volume and operation hardship. This paper presents the integrated system that can observe in-plane, out-of-plane displacement and defect on the surface using ESPI and Shearography. It is anticipated to apply this system usefully to the non-contact metrological field. And qualitative comparison shows acceptable agreement of experiments performed by this integrated system with the strain gauge.