Filling level measurement device operating with microwaves

Details Filling level measurement device operating with microwaves Filling level measurement device operating with microwaves

G - Physics

01

F

G01F 23/284 (2006.01)

Patent

CA 2215626

A filling level measuring device operating with microwaves and to be fastened on a container (3) is provided, said device having a housing (11) and a rod-shaped antenna (7) pointing into the container (3) and said device being designed such that the antenna (7) does not transmit or receive microwaves in the region of a measuring device fastening and the transmitted power is not impaired by condensate or moisture. According to a first solution variant, the antenna (7) is fastened in the housing (11) and a section of the antenna (7) in the region of the measuring device fastening is surrounded by a metallic sleeve (8). According to a second solution variant, a sleeve (8a) in which the antenna (7) is fastened is formed onto the housing (11).

Dispositif utilisant les microondes pour mesurer le niveau de remplissage d'un contenant (3) auquel il doit être fixé; le dispositif comporte un boîtier (11) et une antenne en forme de tige (7), plongée à l'intérieur du contenant (3), et conçue pour ne pouvoir ni transmettre ni recevoir de microondes au voisinage immédiat du dispositif de fixation de l'appareil de mesure; en outre, le signal transmis n'est nullement perturbé par la condensation ou l'humidité. Dans une première version du dispositif, l'antenne (7) est fixée à l'intérieur du boîtier (11) et la section de l'antenne (7) qui se trouve à proximité du dispositif de fixation de l'appareil de mesure est entourée d'un manchon métallique (8). Dans une deuxième version du dispositif, le manchon (8a) dans lequel l'antenne (7) est fixée est formé à même le boîtier (11).

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