Degradation Phenomenon of Electrical Contacts by Hammering Oscillating Mechanism : Contact Resistance (Ⅷ)

摘要

Authors have developed the mechanism which gives vibration to electrical contacts by hammering oscillation and studied the influences of a micro-oscillating on the contacts. They measured fluctuations of resistances in the three conditions (150G for acceleration and 2.0N for contact force, 150G & 0.3N and 400G & 2.0N). It was shown that the fluctuations were occurred in all cases but the time-series pattern was different from one another in contact resistance, starting number and scratched slits. It should be considered more carefully how are the phenomenon occurred to pay more attentions to other factors like voltage and current.