摘要
简述了驻极体的起源和历史上对聚合物驻极体等温放电的探索。详述了探索历程,回答了半个多世纪以来驻极体衰减的诸多未解难题。从繁多的实验数据中在人类历史上找到了驻极体等温放电的实验式和ECM中的驻极体在高温中和常温中两个独立的等温放电的行为方程,进而与生产实际相合,近似地建立了估算ECM使用寿命及其中驻极体电阻率的方法和计算式。
The history of Electret is reviewed, lightly. The works of authors are detaited considerably. The experimental formula at elevated Temp and the two isothermal discharge equations of electrets in ECM at room ternp and elevated temp are established. A method for estimating the operating lifetime of ECM is nearly found.
出处
《电声技术》
2014年第11期16-21,共6页
Audio Engineering
关键词
驻极体
等温放电规律
结晶聚合物
electret
isothermol discharge
crgstalline polymer
