Composite Displacement Measurement by Speckle Technique

Autor: Landau, M. R., Hogert, E. N., Rebollo, M. A., Gaggioli, N. G.
Zdroj: Journal of Modern Optics; October 1992, Vol. 39 Issue: 10 p2161-2168, 8p
Abstrakt: We present a simple method for measuring composite movements which comprise a longitudinal displacement and a rotation of a rough surface. The method is based on the direct analysis of the double exposure photographic recording obtained from two speckle patterns produced by the diffuser, before and after it is translated and rotated.
Databáze: Supplemental Index