How to well pose a magnetization identification problem

Olivier Chadebec (1) , Jean-Louis Coulomb (1) , Gilles Cauffet (1) , Jean-Paul Bongiraud (1)

1 LEG - Laboratoire d'électrotechnique de Grenoble

This paper presents an original approach for determining the unknown magnetization of a ferromagnetic shell. Magnetic measurements using sensors close from the device under test are used to rebuild distributions located on the shell. These distributions are representative of the magnetization and tangential moments or charges can be used. This identification problem is a particular case of an inverse problem and is generally ill posed. Instead of using classical mathematical tools to solve such a problem, we preferred to change it in a better posed one by adding our physical knowledge of the problem. All our results have been validated on a mockup with real measurements.

Domaines: Energie électrique

Olivier Chadebec, Jean-Louis Coulomb, Gilles Cauffet, Jean-Paul Bongiraud. How to well pose a magnetization identification problem. IEEE Transactions on Magnetics, 2003, 39 (3), pp.1634-1637. ⟨10.1109/TMAG.2003.810429⟩. ⟨hal-00289978⟩