Plane-parallel condenser with variable electrode-spacing for determination of electric permittivity of highly conducting liquids below 1 MHz. Part 2.—Experimental approach

Abstract

The theoretical expressions for the capacitance C_x and conductance G_x of a plane parallel-plate condenser as series expressions in negative powers of the electrode spacing, are submitted to experimental verification. Using cells, differing in the dimensions of the electrodes, the measured values of C_x and G_x verify these expressions within experimental accuracy, and that neither the influence of electrode nor edge effects can be neglected for liquids of large conductivity. A semi-empirical approach to the theoretical equations of part 1, devised to increase the accuracy for the computation of the relative electric permittivity, is also presented and tested experimentally.