Method and measuring instrument for measurement of the casting level in a mould
AssigneeBerthold Technologies GmbH & Co. KG
InventorsJuergen Briggmann, Albert Roedfalk, Steffen Mueller, Gerd Reime
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Abstract
A method for measurement of the casting level in a mould incudes the steps of: a) impressing a temporal current profile into a transmitting coil that is arranged at the mould, during a measuring time interval; b) measuring a temporal signal profile resulting in a receiving coil during the measuring time interval, wherein the receiving coil is coupled inductively to the transmitting coil; c) selecting a time window within the measuring time interval, and d) evaluating the measured temporal signal profile within the selected time window to determine the casting level.
Claims10
A method for measuring a casting level in a mould, the method comprising the steps of:
- a) impressing a temporal current profile (i(t)) into a transmitting coil that is arranged at the mould, during a measuring time interval (MZI);
- b) measuring a temporal signal profile (Ue(t)) resulting in a receiving coil during the measuring time interval (MZI), wherein the receiving coil is coupled inductively to the transmitting coil;
- c) selecting a time window (ZF) within the measuring time interval;
- and
- d) evaluating the measured temporal signal profile (Ue(t)) within the selected time window (ZF) to determine the casting level (L);
- wherein the temporal current profile (i(t)) is a non-sinusoidal temporal current profile.
Dependencies are inferred from the claim text.