Issue J. Phys. III France Volume 3, Number 4, April 1993 Page(s) 911 - 914 DOI 10.1051/jp3:1993171

DOI: 10.1051/jp3:1993171
J. Phys. III France 3 (1993) 911-914

Fiber optics speckle interferometer for diffusivity measurements

D. Paoletti and G. Schirripa Spagnolo

Dipartimento di Energetica Università di L'Aquila, Località Monteluco di Roio, 67040 Roio Poggio, L'Aquila, Italy

(Received 9 September 1992, revised 31 December 1992, accepted 20 January 1992)

Abstract
A digital speckle pattern interferometer with optical fibers is proposed for the real time measurement of the diffusion coefficient of liquid binary mixtures. Some examples of application of the technique are reported.

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