本文提出了一种用霍尔传感器测量电网电流的方法,主要说明其标度变换和单片机显示的过程。 [关键词] 标度变换 单片机 检测电路 Abstract: This paper puts forward a method making use of Hall sensor to measure electric current through the electric net out of contact with it. Scale conversion and digital display is given by single chip microcomputer system. Key words: Scale conversion Single chip microcomputer current detection