橡胶行业的静电危害已引起了工人安全部门及防火管理部门的高度重视,因而迫切需要研制一种适合于现场测试用的便携式静电电位计,对这种仪表的要求是:测量误差小(±10％);体积小;重量轻;功耗小; The electrostatic hazards in the rubber industry have drawn great attention from the workers’ safety department and the fire protection department. Therefore, there is an urgent need to develop a portable electrostatic potentiometer suitable for on-site testing. The requirements of this instrument are as follows: small measurement error (± 10 %); Small size; Light weight; Small power consumption;