G - Physics – 01 – F
Patent
G - Physics
01
F
G01F 23/284 (2006.01)
Patent
CA 2324172
There is disclosed a fill-level detector, operating by the radar principle, for gaging the fill level of the lower of two substances filled into and layered one atop the other in a container. The detector incorporates a first electrical conductor and a second electrical conductor which conductors extend parallel to each other in an essentially straight direction and protrude into the lower substance with a generator mounted at the end of the first electrical conductor and, respectively, at the end of the second electrical conductor situated outside the lower substance and outside the upper substance for generating and transmitting an electromagnetic signal, and with a transducer mounted at the end of the first electrical conductor and, respectively, of the second electrical conductor outside the first substance and the second substance for capturing a reflected portion of the electromagnetic signal. The electromagnetic signal can be coupled into the lower substance at the end of the first electrical conductor situated in the lower substance and a portion of the electromagnetic signal reflected at the interface between the lower substance and the upper substance can be captured by the transducer. In this fashion, it is possible in the case of two substances layered one atop the other in the container to also determine the fill level of the lower substance even when the upper substance displays a very high dielectric constant.
Bletz Achim
Neven Joseph
Borden Ladner Gervais Llp
Krohne S.a.
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