Abstract
It is shown that the two-dimensional potential distribution of a region involving different dielectrics is successfully measured with the conducting paper method. In place of the electrostatic field, the current field of the conducting paper is measured, but the portion of the conducting paper corresponding to the different dielectric is replaced with the specific conducting paint whose conductivity is proportional to the permittivity of the dielectric.
As an example, measurements of the equipotential distributions in various special electrodes with one dielectric have been taken and the experimental field plots of interest are presented. The advantages of this method are that the equipotential plot is directly drawn on the conducting sheet, and that there are no polarization effects, so either a.c. or d.c. may be used. This method is very useful for optimizing the location and shape of electrodes with various dielectrics.