Discrete property of parameter in two mode electrostatic discharges with ESD generator

Experiment with electrostatic discharge(ESD) generator has been implemented. Distinctive variation of discharge parameters in electrostatic discharge(ESD) for two gap cases of electrode moving to the target and fixed gap. Purely air discharge current waveform has no much high peak. Discharge current waveform appears much high first peak for the case of electrode final collision with the target. Discharge current for short distance to the target have sharp rise edge and very large first peak whereas discharge current have slow rise slope and low peak value for electrode to the target moving from comparatively long distance away.