15 September 2006 Microstructure movements study by dynamic speckle analysis
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Proceedings Volume 6341, Speckle06: Speckles, From Grains to Flowers; 634127 (2006) https://doi.org/10.1117/12.695493
Event: Speckle06: Speckles, From Grains to Flowers, 2006, Nimes, France
In paint and ink industries, no commercial instruments can perform non-intrusive monitoring of the drying process. We propose here an optical instrument, called HORUS(R), that monitors the drying process of any product deposited on any substrate by analyzing micro-structure movement of the product. Most of drying processes have in common that this movement becomes slower with time. On the basis of the "multi-speckle diffusing wave spectroscopy" (MSDWS) technique, we propose here a simple and robust algorithm called ASII for "adaptive speckle imaging interferometry", able to detect in real time the micro-structure agitation by plotting what we call "speckle rate" (SR) as a function of time. We show the hardware configuration and 3 typical experiments made with HORUS(R) film formation analyser.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Laurent Brunel, Laurent Brunel, Alice Brun, Alice Brun, Patrick Snabre, Patrick Snabre, "Microstructure movements study by dynamic speckle analysis", Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 634127 (15 September 2006); doi: 10.1117/12.695493; https://doi.org/10.1117/12.695493

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