Simple Technique to Control the Stray Field of Electrolytic Cells

Abstract

A technique is outlined to control the stray field of electrolytic cells in a predictable and simple manner. The technique is particularly useful in biological impedance work and in determinations of the dielectric constant of solutions of high conductivity. It is based on a plot of the apparent dielectric constant as a function of electrode distance. In a logarithmic presentation the apparent dielectric constant appears as the sum of the true dielectric constant and two linear functions, representative of electrode polarization and stray field component. A few examples are given to illustrate the technique and its limitations.