Investigation of potential differences for a three-body problem

An investigation to assess potential differences for a three-body geometry was conducted. Using conducting cylinders of different sizes to model the test system´s conductors, capacitance coefficients were measured and body potentials calculated for different geometries of the three floating conductors in close vicinity. The test geometry was chosen to model the approach of the charged human body to an electronic system which has a neighboring floating conductor. Parameters studied include body sizes, test geometries, and the relative magnitude and polarity of the charges on the three bodies. The results of this work provide a better understanding of the fundamental principles involved in the electrostatic discharge (ESD) event involving three bodies. The results have application in assessing the possibility of ESD in different geometries.