Device for determining the dew-point temperature of a test gas

Details Device for determining the dew-point temperature of a test gas Device for determining the dew-point temperature of a test gas

G - Physics

01

N

G01N 21/55 (2006.01) G01N 25/68 (2006.01)

Patent

CA 2572862

The invention relates to a device for determining the dew-point temperature of a test gas comprising a light guide, a condensing surface which is arranged thereon and whose reflectance depends on the test gas condensation, a light source for light transmission to the condensing surface through the light guide, a light sensor for determining a light intensity reflected from the condensing surface in the light guide and temperature adjusting means, wherein said condensing surface is embodied in a semi-hydrophobic manner.

L'invention concerne un dispositif de détermination de la température de point de rosée d'un gaz de mesure, comprenant un guide d'onde optique, une surface de condensation disposée sur le guide d'onde optique, surface dont le pouvoir de réflexion est fonction de la condensation du gaz de mesure, une source lumineuse pour l'émission de lumière, par le guide d'onde optique, sur la surface de condensation, un détecteur de lumière pour la détermination de l'intensité lumineuse réfléchie, à partir de la surface de condensation, dans le guide d'onde optique, ainsi que des moyens de réglage de la température de ladite surface de condensation. Conformément à l'invention, la surface de condensation est réalisée de manière semi-hydrophobe.

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