Abstract :
THE OBJECTIVES of this paper are (1) to provide curves displaying accurately determined values for the capacitance per unit length of two parallel rectangular cylinders, and (2) to present a brief explanation of the technique used in obtaining these curves in order to indicate its utility in the study of other conductor configurations. In addition to providing capacitance values, the curves are useful in determining the magnetic permeance associated with relay and contactor magnets of similar configuration. A good example of the latter is the interpole leakage permeance of the magnet in Fig. 1. The technique, a natural extension of the method of subareas, as expounded by Higgins and Reitan,1¿3 was utilized earlier by T. N. Feng in the work described in his unpublished thesis at the University of Wisconsin, Madison, Wis., in 1951. The depth of that investigation was somewhat limited, however, for it was carried on prior to the time that high-speed computing equipment was generally available. The present work obtains useful results by taking full advantage of the capabilities of the magnetic-drum data-processing machine.
