R. Grimberg et al., CALCULATION OF THE INDUCED ELECTROMAGNETIC-FIELD CREATED BY AN ARBITRARY CURRENT DISTRIBUTION LOCATED OUTSIDE A CONDUCTIVE CYLINDER, Journal of physics. D, Applied physics, 30(16), 1997, pp. 2285-2291
The present work approaches the problem of determining, by analytical
solutions, the electromagnetic field created by an arbitrary distribut
ion of alternating currents placed outside an infinitely long non-magn
etic conductive cylinder. Making use of the dyadic Green function meth
od, the electromagnetic field outside the cylinder is expressed as the
sum of the field in free space and the field created by the currents
induced in the conductive cylinder. The general results we obtained ar
e particularized for the analytical solutions describing the operation
of an eddy current transducer with rotating magnetic field for the ca
se of a conductive cylinder non-coaxial with the current source.