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Optical Engineering

Measurement of three-dimensional displacement fields and shape using electronic speckle photography
Author(s): Per Synnergren
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Paper Abstract

A stereoscopic electronic speckle photography system is presented that detects 3-D displacement fields or object shape with subpixel accuracy. The system is all electronic, and data are stored, results are presented, and calculations are performed in a PC computer. The expected standard deviation of measurements of small deformations are about 0.001% of the object size for in-plane measurements and about 0.006% of the object size for the out-of-plane component, when white light speckles are used.

Paper Details

Date Published: 1 August 1997
PDF: 9 pages
Opt. Eng. 36(8) doi: 10.1117/1.601456
Published in: Optical Engineering Volume 36, Issue 8
Show Author Affiliations
Per Synnergren, Lulea Univ. of Technology (Sweden)


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