A magnetic flux injection technique developed to assess the residual curvature in non-oriented electrical steel strip has been assessed for its suitability for an on-line application with a study of the effects of lift-off between the pole faces of the magnetising/sensing yoke and strip surface. It has been found that changes in the lift-off appear to have very little effect on the differences in loss values measured at each of the surfaces which are correlated to the residual curvature.
PL
Technika "flux injection" jest niekiedy stosowana do badania materiałów magnetycznych bez możliwości bezpośredniego pomiaru indukcji. W metodzie tej ważne znaczenie ma kształt nabiegunników rdzenia i ich przyleganie do powierzchni blachy. Zbadano możliwość pomiaru krzywizny powierzchni blachy.