METHOD AND APPARATUS FOR DETERMINING A FILL LEVEL OF A FLUID IN A TANK

A method and an apparatus for determining the fill level of a fluid (2) in a tank (1), wherein a propagation time of an ultrasonic signal between an ultrasound element (4) and a reflection at the surface (3) of the fluid (2) is measured. A first, single reflection and a second, double reflection are...

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Bibliographische Detailangaben
Hauptverfasser: Pfister, Tobias, Gonzalez-Baquet, Tania, Rademann, Sascha, Bastoreala, Arthur, Hofmann, Jan Michl
Format: Patent
Sprache:eng
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Zusammenfassung:A method and an apparatus for determining the fill level of a fluid (2) in a tank (1), wherein a propagation time of an ultrasonic signal between an ultrasound element (4) and a reflection at the surface (3) of the fluid (2) is measured. A first, single reflection and a second, double reflection are evaluated, wherein the measurement of the reflections is carried out with a measurement setting with an excitation energy of the ultrasonic signal and a sensitivity. The sensitivity is indicated by a gain and a comparison value (13). Via measurements with different measurement settings, a suspected first reflection and a suspected second reflection are located and a plausibility check is carried out of the propagation times of the first and second reflections with respect to each other.