the magnetic field

On the basis of opening of boundary conditions the got equalizations are for determination of density of calculation currents in case of analytical calculation of vectorial potential of magnetic-field of the superimposed circular eddy current converter with electric conduction ferromagnetic core above the object of control in form a leading ferromagnetic plate.

Defined vectorial potential of the magnetic field of the screened circular cylinder spool of rectangular transverse section with the current of arbitrary form which for the increase of sensitiveness and concentration of the magnetic field is placed on cylinder П-similar ferromagnetic to the core above the object of control in the form of leading ferromagnetic plate.