Beitrag zur Darstellung des Spaltfeldes beim Magnetton und Anwendung auf den Wiedergabevorgang

With the help of Green's method for the solution of the first boundary problem of the potential equation an explicit and simple demonstration of potential and field distribution is obtained. The potential distribution over the gap is taken as linear. In another method using Fourier transforms a simple integral demonstration of the field distribution is obtained which can be generalised to more complicated boundary conditions and can be adapted to reproduction phenomena using the reciprocity technique. The integrals give the function for the reproduction in the gap, a property which leads to a single-valued relation between the potential field over the gap and the null-points of the gap function.