The invention relates to devices for detecting the fill level of media in containers.The devices are distinguished, in particular, by a simple and reliable detection of the fill level.For this purpose, multiple measuring points, each consisting of a series circuit of a resistor and a p-n junction, are spaced apart from one another. Each measuring point is connected, on the one hand, to an input of a multiplexer. On the other hand, the measuring points are connected to a reference potential. The output of the multiplexer is connected to a control device, wherein the control device isa control device periodically supplying a voltage to the measuring point connected to the control device via the multiplexer and measuring the voltage drop,a control device determining the medium from the temperature-dependent forward voltages resulting from the different thermal properties of the medium anda control device ascertaining the fill level from the consecutive measuring points.
Device for detecting the fill level of media in containers
2021-12-14
Patent
Elektronische Ressource
Englisch
IPC: | G01F Messen des Volumens, des Durchflussvolumens, des Massendurchflusses oder des Füllstandes , MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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