An instrument used to detect the presence, sign, and in some configurations the magnitude of an electric charge by the mutual attraction or repulsion of metal foils or pith balls.

• 验电器用于如下目的的一种仪器：检验物体是否带电，指示物体是否带电，通过金箔条或木球的互相吸引或排斥测量电荷的强度