La Houille Blanche
Number 5, Octobre-Novembre 2006
|Page(s)||33 - 39|
|Published online||01 June 2007|
Evaluation d’une méthode d’imagerie X en microfluidique : cas du remplissage de microcanaux en forme de « T »
X-Ray imaging method evaluation in microfluidics: case of a «T» shaped microchannel filling
Laboratoire d’Intégration des Systèmes et des Technologies CEA Saclay
2 Laboratoire de Génie Mécanique de Toulouse LGMT – INSA Toulouse
3 Laboratoire d’Analyse et d’Architecture des Systèmes LAAS – CNRS Toulouse
X-rays methods assessment in microfluidics: case of “T” shaped microchannels filling. Fluid flows within «T» or «Y» shaped microchannels are deeply studied in order to develop adapted modeling approaches and experimental techniques. Our technological choice lies on the attenuation measurement of X-ray in matter. The main advantage of this non-intrusive technique is to be implemented on medias opaque to visible light. Moreover, X-rays methods may achieve better spatial resolutions as compared to optical methods because of their much lower wavelength. In order to validate this X-ray method, measurements obtained by this technique are compared with direct measurements carried out on similar microchannels. Finally, experimental results are compared with a theoretical model.
Mots clés : Congrès microfluidique 2004
© Société Hydrotechnique de France, 2006
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