Abstract
A CAPACITOR has been investigated which consists of six spheres, a, b, c, d, e and f, each with its centre on an axis of an orthogonal co-ordinate system and equidistant from the origin (see Fig. 1). The capacitance is measured between any two opposite spheres, while the remaining four and the shield are always at ground potential. This makes a three-terminal capacitor; the third terminal is the ground to which the shield and the non-active spheres are connected. This sphere configuration, which has three-dimensional symmetry, is somewhat related to the four-cylinder system having two-dimensional symmetry, described by Thompson and Lampard1.
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References
Thompson, A. M., and Lampard, D. G., Nature, 177, 888 (1956).
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MAKOW, D. A Precision Femtofarad Capacitor. Nature 210, 1350–1351 (1966). https://doi.org/10.1038/2101350a0
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DOI: https://doi.org/10.1038/2101350a0
