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.
Claims13
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).
A measuring instrument for measuring a casting level in a mould, comprising:
- at least one transmitting coil;
- at least one receiving coil;
- a controllable current source that is designed to effectuate a predefined temporal current profile (i(t)) in the at least one transmitting coil;
- a measuring instrument that is designed to measure a temporal signal profile (Ue(t)) in the at least one receiving coil that is coupled inductively to the at least one transmitting coil;
- and
- an evaluation apparatus that is designed to evaluate the measured temporal signal profile (Ue(t)) to ascertain the casting level (L).
Dependencies are inferred from the claim text.