An inverse problems approach to velocity reconstruction
from measurements of electromagnetic fields

Frank Stefani and Gunter Gerbeth

Forschungszentrum Rossendorf (FZR), P.O. Box 510119, D-01314 Dresden, Germany

If a moving electrically conducting fluid is exposed to an external magnetic field electrical currents are induced. These currents give rise to an additional magnetic field which can be measured outside the fluid volume and to an electric potential measurable at the fluid boundary. From the viewpoint of inverse problems, we consider the possibility of velocity reconstruction from the measured electromagnetic fields. Possible applications for a contactless measuring technique are delineated.