Abstract
In many metallurgical and silicon crystal growth applications the knowledge about the flow field of the respective liquid metals is vital for proper process management. The high temperatures and the opaqueness of those melts set severe restrictions on the applicable flow measurement methods. The Contactless Inductive Flow Tomography (CIFT) is able to reconstruct the mean flow structure of liquid metals by measuring the flow induced perturbation of an applied magnetic field outside the melt. Typically, these perturbations are about 4 orders of magnitude smaller than the applied magnetic field. Therefore, special care has to be taken to ensure a very high dynamic range of the utilized magnetic field sensors and to minimize the effect of electromagnetic interferences. In this paper we give a short overview on CIFT and delineate some methods to increase its electromagnetic compatibility.
Published Version
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