Browse > Article
http://dx.doi.org/10.3795/KSME-A.2002.26.4.693

A Study on Measurement of In-Plane Displacement using ESPI in Mechanical Structure under torsional load  

Jang, Seok-Won (대우전자 품질경영연구소)
Lee, Hak-Ju (대우전자 품질경영연구소)
Choe, Eun-O (대우전자 품질경영연구소)
Jeong, Chan-Hui (대우전자 품질경영연구소)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.26, no.4, 2002 , pp. 693-700 More about this Journal
Abstract
Recently, the mechanical structures applied to many industrial products, especially in electronic products, appear to be miniaturized and complicated. This trend makes it difficult to analyze the stress distribution of those mechanical structures and generates new challenges for precise measurement of strain. In order to solve this measurement problem many optical measurement techniques have been suggested. Among those, the ESPI(Electronic Speckle Pattern Interferometry) has been considered as one of the most useful tools. But the shortage of recognition and difficulties of measurement have limited its industrial applications in spite of its excellent capabilities. Therefore in this study, not only the verification of the FEA result but the enhancement of industrial application of ESPI was tried by measuring the in-plane displacement of mechanical structure with ESPI, which is difficult to be measured with strain gauge.
Keywords
ESPI; In-Plane Displacement; Strain Gauge; Torsional Load; Laser;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Vest C.M., 1979, Holographic Interferometry, New York ; John willey and sons
2 Ennos A.E., 1975, 'Speckle Interferometry,' in J.C.Dainty(ed.), 'Laser Speckle and Related Phenomena,' Springer Velag, Berlin, pp. 203-253
3 Johns R., and Wykes C., 1983, 'Holographic and Speckle Interferometry,' Cambridge University Press
4 Leendertz J.A., 1970, 'Interferometric Displacement Measurement on Scattering Surfaces Utilizing Speckle Effect,' Journal of Physics E : Scientific Instrument, 3: 214   DOI   ScienceOn
5 김경석, 김형수, 1994, 'ESPI법과 화상처리에 의한 2차원의 스트레인 측정에 관한 연구,' 韓國情密工學會誌, 제11권, 제1호   과학기술학회마을
6 Ettemeyer A., 1996, 'Non-contact and Whole Field Strain Analysis with a Laseroptical Strain Sensor,' VIII International Congress on Experimental Mechanics, Nashville, Tenessee, pp. 10-13
7 Binda L., and Fachini M., 1998, 'Electronic Speckle Interfermetry for the Deformation Measurement in Masonry Testing,' Construction and Building Materials 12, pp. 269-281   DOI   ScienceOn