An Experimental Research on Self generated Potential of Ball Disc Friction Pair under Normal Pressure and Low and Middle Vacuum

An experimental research on self generated potential of metal friction pair was carried out.The characteristic frequency of the potential was explored. The potential signal was predicted with ARMA (auto regressive moving average) model. It has been found that at different vacuum conditions and loads, the characteristic frequency of self generated potential was different, and the potential signal could be predicted with AR model.