G - Physics
01
N
G01N 21/59 (2006.01) A47L 15/42 (2006.01) D06F 37/00 (2006.01) D06F 39/00 (2006.01)
Patent
CA 2741705
A turbidity sensor for use in a machine for washing articles, e.g., a washing machine (400). The turbidity sensor comprises a light source (210) for emitting light. The emitted light has a radiant intensity which is variable. The sensor further comprises a light-sensitive element (220) for receiving light emitted from the light source (210). The light source (211) and the light- sensitive element (220) are positioned relative to each other so that, when the light source (210) is in operation, light emitted from the light source (210) can propagate through a washing liquid contained in the washing machine (400) on its way to the light sensitive element (220). The light-sensitive element (220) is configured to measure the radiant intensity of light received at the light-sensitive element (221). Furthermore, the sensor comprises a controller (230) which is communicatively coupled to the light source (210) and the light-sensitive element (220). The controller (230) is configured to adjust the radiant intensity of the light emitted by the light source (210) in dependence of the measured radiant intensity of light received at the light-sensitive element (220).
L'invention concerne un détecteur de turbidité sutilisant dans des machines à laver des articles, p.ex. dans des lave-linge (400). Ledit détecteur comporte une source de lumière (210) dont la lumière présente une intensité radiante variable, et un élément photosensible (220) recevant la lumière émise par la source de lumière (210). La source de lumière (211) et l'élément photosensible (220) sont placés lun par rapport à lautre pour que, quand la source de lumière (210) émet, sa lumière traverse le liquide de lavage du lave linge (400) sur sa trajectoire vers l'élément photosensible (220) lequel mesure lintensité radiante de la lumière reçue par l'élément photosensible (221). Le détecteur comporte de plus un contrôleur (230) relié à la source de lumière (210) et à l'élément photosensible (220). Le contrôleur (230) ajuste lintensité radiante de la lumière de la source de lumière (210) en fonction de lintensité radiante de la lumière reçue par lélément photosensible (220).
Pers Per-Erik
Pimputkar Girish
Electrolux Home Products Corporation N.v.
Fetherstonhaugh & Co.
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