金属薄板电导率的四探针测量法

介绍了用镜式检流计测量金属薄板电导率的四探针测量方法。这一方法是应用恒定电场理论，通过无限大金属薄板上的电流馈入点，测定任意点的电位，来获得薄板的电导率。此测试过程简单，所需要的设备少，且测量精度高，不仅适用于金属材料，对半导体及其它导电材料同样适用，在科研、生产中有较高的实用价值。

The Four-Probe Method to Measure the Conductivity of Metal Thin Board

This paper introduces the four-probe method of measuring the conductivity of metal thin board using mirror galvanometer as measuring tool. Basing on the invariable electric field theory, it gets the conductivity by determining the voltage through its current on the thin board that conducts electricity. Not only the simple process, but the precision and the wide application used in metal and other conduct material, we can say, the method has high utility value.