G - Physics – 01 – F
Patent
G - Physics
01
F
G01F 23/28 (2006.01) G01F 23/04 (2006.01) G01F 23/292 (2006.01)
Patent
CA 2476709
Measuring the filling level by means of devices known in prior art which make use of the total reflection of light on reflecting surfaces of fiber optic bodies immersed in the fluid can be distorted by drops or splashes attached to reflecting surfaces that are not immersed. Disclosed are a method and a device according to which the light reflected by each reflecting surface is measured separately. The measuring signals for determining the filling level are preferably subjected to a plausibility check so as to detect and eliminate measuring distortions and errors. The inventive method and device can be used to determine the filling level of fluid-filled containers, particularly receptacles containing fuel, wash water, oil, a hydraulic fluid, etc. in motor vehicles.
Sur des dispositifs de mesure de niveau connus, qui utilisent la r~flexion totale de la lumire sur des surfaces r~fl~chissantes d'~l~ments de guidage de lumire immerg~s dans un liquide, la mesure peut Útre fauss~e par des gouttes ou des projections se trouvant sur des surfaces r~fl~chissantes non immerg~es. L'invention concerne un proc~d~ et un dispositif au moyen duquel la lumire renvoy~e par chaque surface r~fl~chissante est mesur~e s~par~ment. Les signaux de mesure pour d~terminer un niveau sont de pr~f~rence soumis ~ un contrÙle de plausibilit~, afin de d~tecter et d'~liminer les perturbations et les erreurs. La pr~sente invention peut Útre utilis~e pour d~terminer le niveau de contenants remplis de liquides, notamment de contenants pour carburant, eau de lavage, huile, fluide hydraulique, etc. dans les v~hicules ~ moteur.
Kautex Textron Gmbh & Co. Kg
Ridout & Maybee Llp
LandOfFree
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