Some aspects of permanent-magnet aerospace-instrument devices

The paper presents modeling techniques for simulating permanent magnets in computer-aided analysis for either the finite-element or finite-difference schemes, methods to deal with various geometries and inherent symmetry that may be a characteristic of the problem. By numberically analyzing the model, detailed flux-distribution plots have been obtained by means of a high-speed digital computer. The paper discusses typical cases that have been studied. By making the computer programs sufficiently flexible for a given class of problems, various configurations could be studied with the ultimate aim of optimized designs, size and weight reduction, and improved sensitivity, stability and overall reliability.