高电压绝缘测试技术中微弱电荷的测量

Micro-charge measurement in the insulation test and measurimg technology for high-electrisity field

近 2 0年来微弱电荷的测量已成为高电压绝缘领域的一个研究热点。由于微弱电荷传感器的设计比较困难 ,有些情况下微弱电荷的测量到目前为止还没有得到很好的解决。对固体介质内部空间电荷、介质分界面处表面电荷及气体介质内部空间预放电电荷的测量技术进行综述。

In the last two decades,the measurement of micro-charge has become the research focus in the field of high voltage insulation measurement.Owing to the difficulty of the design of the charge sensor,some techniques of charge measurement in some cases still have not been solved very well.Approaches for the measurement of spatial charge in solid dielectrics are reviewed,surface charge on the surface of insulator and pre-discharge charge in gas dielectrics.