“温差电动势测定”实验中一个不能忽略的问题

An Important Issue in Experiment of "Determination of Thermal Electromotive Force"

用物理原理解释了热电偶"温差电动势"产生的机理,指出热电偶"温差电动势测定"物理实验中所作的"温差"与"温差电动势"关系曲线图,必须注明参比端(冷端)的温度。

The generation mechanism of thermal electromotive force is explained on the basis of physics principles.It shows that the temperature of reference junction(cold junction) must be annotated on the correlation curve graph of 'temperature difference' and 'thermal electromotive force' reached through physics experiment on 'determination of thermal electromotive force'.