基于静电衰减规律的油品电导率测量  

Measuring electrical conductivity of oil based on the attenuation of static electricity

作　　者：赵继飞[1] 王海堂[1] 亓鹏[1] 邵虎[1] 刘超卓[1] 

机构地区：[1]中国石油大学(华东)物理科学与技术学院,山东东营257061

出　　处：《物理实验》2011年第4期8-10,共3页Physics Experimentation

基　　金：国家大学生创新性实验计划(No.091042548);中央高校基本科研业务费专项资金(No.09CX04019A)

摘　　要：油品中的电荷遵循指数衰减规律,测出油品的相对电容率和时间常量,即可求出油品的电导率.通过电容比较测得油品的相对电容率,用放电过程电位的测量间接获得时间常量.采用静电自动测量系统采集数据,利用软件拟合出衰减曲线.该方法适用于电导率低于10-11S/m的油品测量.It is known that the static electricity follows the exponential attenuation law with time,so the electrical conductivity could be gotten as soon as the relative inductivity and the time parameter are measured.The relative inductivity of oil was obtained by comparing the inductivity,and the time parameter was given indirectly by measuring the voltage in the process of discharging.The electrostatic automatic measurement system was adopted to data collection,and the data was fitted one curve.The method mentioned above was applicable for the oil whose electrical conductivity was less than 10-11 S/m.

关 键 词：电导率 静电电位 电容 衰减曲线 

分 类 号：O441[理学—电磁学]