G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 33/03 (2006.01) A47J 37/12 (2006.01) G01N 27/22 (2006.01)
Patent
CA 2513871
The invention relates to a device for measuring the quality and/or degradation of a fluid, especially an oil, comprising a sensor consisting of at least one pair of electrodes which are distanced from each other. Said sensor is immersed in the fluid which is to be measured. The electrodes and the fluid form a capacitive element whose capacity varies according to the dielectric constant of the fluid. The sensor can provide an electric output signal representing said dielectric constant. The inventive device also comprises processing means which receive the output signal and which can determine the degree of quality and/or degradation of the fluid on the basis of said output signal. The invention is characterized in that the electrodes extend substantially on the same plane and in that the fluid surrounds the two surfaces of the electrodes on both sides of said plane.
L'invention concerne un dispositif de mesure de la qualité et/ou de la dégradation d'un fluide, notamment d'une huile, comprenant un capteur comportant au moins une paire d'électrodes espacées l'une de l'autre, destiné à être immergé dans le fluide à mesurer, les électrodes et le fluide formant un élément capacitif dont la capacité varie en fonction de la constante diélectrique du fluide, ledit capteur étant capable de fournir un signal électrique de sortie représentatif de ladite constante diélectrique, et des moyens de traitement recevant ledit signal de sortie et capables de déterminer le degré de qualité et/ou de dégradation du fluide sur la base dudit signal de sortie, caractérisé en ce que lesdites électrodes s'étendent sensiblement dans un même plan et en ce que le fluide baigne les deux faces des électrodes, de part et d'autre dudit plan.
Chambon Gerald
Gijs Martin
Chambon Gerald
Ecole Polytechnique Federale de Lausanne (epfl)
Gowling Lafleur Henderson Llp
LandOfFree
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