“…paragraph 7.10 "Field of Circular Loop", in the book of Smythe (1950), p. 270 f.]. We used this approach to numerically calculate the stray magnetic field of different coil types by summing up the field generated by the individual windings of the coils (Hiergeist et al, 2010;Rezzoug et al, 1992). By multiplying the stray magnetic field obtained by this approach for a given coil current I by μ 0 we get the stray magnetic flux density B(I).…”