In this paper, the formulas of hopping current in polymer and polymer electret are derived. 推导了聚合物和聚合物驻极体中的跳跃电流公式。
The article describes in experiments the characteristic of electret material in the processing of electret condenser microphone with grid-controlled constant corona charge, which gives valuable inf 通过实验研究了栅控恒压电晕充电制备驻极体电容传声器中的驻极体材料的特性,对如何使驻极体带上稳定、匀的电荷,提供了有价值的资料。