CPC B22D 2/003 (2013.01) [G01F 23/26 (2013.01)] | 10 Claims |
1. 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.
|