Generation of ESD wave pulse and its space propagation characteristics

An electrostatic discharge (ESD) between a metal object of large aspect ratio, charged at a low voltage, and another metal object emits electromagnetic energy, which is propagated in an impulsive form in the spatial medium around the metal objects. Sometimes, this phenomenon interferes with a computer system located in this spatial medium. The electromagnetic interference (EMI) in this case, recognized as indirect ESD, has been found by the present author to be proportional, not to the charged energy in the metal object, but to the acceleration component of the electromagnetic energy which has been emitted. An experimental study of the waveform and spatial propagation characteristics of the electromagnetic radiation emitted is reported.<>