Separation of Polarization Charge Density on Polymer- Film/Disk-Electrode Contact with a Thin Air Layer

摘要

This paper describes experimental results of polarization charge density and residual charge density on PET-film/plane-electrode contact with a thin air layer by a pulsed electroacoustic method. In this method, the air layer has an important role as an acoustic barrier to separate the charge on the film from the charge on the electrode. When a dc applied voltage exceeded a critical level, the polarization charge density deviated from its theoretical value.