【摘要】 给出了一种基于感应原理的驻极体表面电位测量仪，该仪器原理简单，采用直流电池供电，漏电流小，用电省，指示直观，小型方便，操作简便。其电位测量范围为０～（１９９９±２）Ｖ。经实际使用，其性能稳定，能够满足日常测氡的需要。更多还原

【Abstract】 This paper presents a surface potential monitor for electret based on the theory of electrostatic induction. The monitor has advantages of simple principle, small leak current, small consumption of electricity, with LCD reading , smallness and lightness, and is easy to perform and powered by DC battery.The range for measuring surface potential is 0～(1999±2) V. The monitor has is stable in use and can meet the needs of radon measurement.更多还原