Automatic check of the hydrophilicity of a solid surface...

Details Automatic check of the hydrophilicity of a solid surface... Automatic check of the hydrophilicity of a solid surface...

G - Physics

01

B

G01B 11/06 (2006.01) G01N 21/35 (2006.01)

Patent

CA 2353600

The invention relates to a method for controlling the hydrophilicity of a solid surface after a hydrophilizing treatment. According to said method, the surface is wetted with water, irradiated with infrared light, the intensity of the infrared light reflected by the surface is measured at a predetermined wavelength or at several predetermined wavelengths and the intensity measured is used to determine the median occupation with water of the surface. The method can be used, for example, for automatically controlling the effect of a purification process or a hydrophilizing treatment of plastics. If the results detected are insufficient, preferably alarm messages are output and/or measures for monitoring the preceding process steps are initiated.

L'invention concerne un procédé de commande de l'hydrophilie d'une surface solide selon un traitement hydrophilisant. Ce procédé consiste à arroser la surface d'eau, à l'exposer à des rayons infrarouge ; à mesurer l'intensité des rayons infrarouge réfléchis par la surface pour une ou plusieurs longueur(s) d'onde(s) prédéterminée(s) et à déterminer l'occupation moyenne de la surface par l'eau à partir de l'intensité mesurée. Le procédé peut, par exemple, être utilisé pour la vérification automatique d'un procédé de nettoyage ou d'un traitement hydrophilisant de matières plastiques. Si les résultats sont insuffisants, de préférence, des messages d'avertissement automatiques sont affichés et/ou des mesures de vérification des différentes opérations de processus sont prises.

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