Scaling and analyzing the influence of fluid surface of fluid with nano-granular through speckle pattern experiment

Xijun Wang; Yajun Wang; Xinzhong Li; Jook Wooh Seo

doi:10.1117/12.783676

14 November 2007 Scaling and analyzing the influence of fluid surface of fluid with nano-granular through speckle pattern experiment

Xijun Wang, Yajun Wang, Xinzhong Li, Jook Wooh Seo

Author Affiliations +

Proceedings Volume 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 67224L (2007) https://doi.org/10.1117/12.783676
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

An optical system with double beam interference system was designed to measure the movement of nano-particles in fluid with laser speckle technology. In order to investigate the influence of the scattering light generated from liquid surface on speckle patterns, the liquid surface contour was dynamically detected by WYKO during nano-particle movement. The result demonstrates that the fluctuation of fluid surface is slight. Meanwhile, in order to further analyze this effect, a piece of ground glass was employed. The process of ground glass to be polished to optical glass was studied and tested continuously using WYKO and laser speckle technology. And then, the speckle patterns generated from kerosene fluid surface were studied. By contrast, the results show that, the fluid surface is transparent to the measurement wavelength. The influence of the surface of fluid can be neglected. Furthermore, the conclusion illustrates that laser speckle technique is an effective and reliable method to study the movement of nano-granular in fluid.

Citation Download Citation

Xijun Wang, Yajun Wang, Xinzhong Li, and Jook Wooh Seo "Scaling and analyzing the influence of fluid surface of fluid with nano-granular through speckle pattern experiment", Proc. SPIE 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 67224L (14 November 2007); https://doi.org/10.1117/12.783676

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KEYWORDS

Magnetism

Speckle pattern

Laser applications

Glasses

Surface finishing

Speckle

Polishing

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