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PROCÉDÉ DE DÉTERMINATION D'UN NIVEAU D'UN MATÉRIAU DANS UN RÉSERVOIR, ET SYSTÈME DE MESURE DE NIVEAU DU TYPE RADAR
PROCÉDÉ DE DÉTERMINATION D'UN NIVEAU D'UN MATÉRIAU DANS UN RÉSERVOIR, ET SYSTÈME DE MESURE DE NIVEAU DU TYPE RADAR
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摘要
A method of determining a filling level of a product contained in a tank, the method comprising generating and transmitting electromagnetic signals; propagating the transmitted electromagnetic signals towards a surface of the product contained in the tank; receiving echo signals resulting from reflections at impedance transitions encountered by the transmitted electromagnetic signals, including a surface echo signal resulting from reflection at a surface of the product; determining a position of a reference impedance transition using a reference echo signal resulting from reflection of the transmitted electromagnetic signals at the reference impedance transition; determining an update level located above the surface, based on the determined position of the reference impedance transition and a known position of the reference impedance transition; determining a disturbance echo profile using at least one of the echo signals resulting from reflection of the transmitted signals at at least one impedance transition located above the update level; and determining the filling level based on the received echo signals and the disturbance echo profile.
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