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Proceedings Paper

Study of dynamic displacement field measurement using DSPI
Author(s): Jingwei Tong; Shibin Wang; Hong-Qi Li; X. D. Ni
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Paper Abstract

A technique for measuring in-place displacement under impact loading using digital speckle pattern interferometry (DSPI) with combining the digital subtraction and add mode is presented. A new technique of the add mode filtering is used. To grab the digital speckle of field produced by a pulse laser, an instantaneous digital image grabbing system is proposed. Thus the dynamic digital speckle image can be recorded and stored in a digital frame store. As an example, the displacement field of a semi-infinite model udner impact loading is measured.

Paper Details

Date Published: 29 April 2003
PDF: 5 pages
Proc. SPIE 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, (29 April 2003); doi: 10.1117/12.509769
Show Author Affiliations
Jingwei Tong, Tianjin Univ. (China)
Shibin Wang, Tianjin Univ. (China)
Hong-Qi Li, Tianjin Univ. (China)
X. D. Ni, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 5058:
Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002
Gong Xin Shen; Soyoung S. Cha; Fu-Pen Chiang; Carolyn R. Mercer, Editor(s)

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