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OwnerArthur Bastoreala, Jan Michl Hofmann +3inventors
InventorsArthur Bastoreala, Jan Michl Hofmann, Sascha Rademann, Tania Gonzalez-Baquet, Tobias Pfister
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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.
A method 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, wherein 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 being indicated by a gain and a comparison value (13), wherein via measurements with different measurement settings a suspected first reflection and a suspected second reflection are found, and that a plausibility check is carried out of the propagation times of the first and second reflections relative to each other.
Apparatus for determining the fill level of a fluid (2) in a tank (1), having means for measuring a propagation time of an ultrasonic signal between an ultrasound element (4) and a reflection at the surface (3) of the fluid (2), and for evaluating a first, single reflection and a second, double reflection, 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 being indicated by a gain and a comparison value (13), wherein via measurements with different measurement settings the means locate a suspected first reflection and a suspected second reflection, and perform a plausibility check of the propagation times of the first and second reflections relative to each other.
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