Transfluxor design considerations

The transfluxor is a new magnetic device for use in information handling and nondestructive storage systems. The location and sizes of each of the several apertures determine many of the operating characteristics of the device. This paper discusses the various geometric and magnetic factors that should be considered before deciding upon a core configuration. Two methods, one based on a graphical approach, the other on mathematics, are outlined to determine the optimum shape for a particular application. A procedure may be reversed to predict the performance of existing cores. The flux storage principles are described and the equation is derived. This equation shows the relationship between the input current Icand the stored flux and are design constants depending on the magnetic and physical properties of a core. Comparisons are made between a 346-mil (OD) core and one of 83 mils. Estimates are given as to the practical limits to which core miniaturization may be carried using existing fabrication methods.