【摘要】 通过改进的同种材料组成热电偶产生热电势的试验,发现都有微弱热电势产生,分析了同种材料可以产生热电势的原因.结果表明,由于某种作用使同种材料的均质性遭到破坏,这种不均质性是产生附加热电势的主要原因,指出在热电偶使用中要尽量避免这种情况出现.更多还原

【Abstract】 Several improved experiments of thermoelectromotive force of thermocouple consisting of two kinds of same metals are analyzed in this paper. Consisting of homogeneous metals joined can’t generate thermoelectromotive force, but thermoelectromotive force will generate when the metals, for some reason, are not homogeneous. We must keep thermoeletric wire homogeneous when we use thermocouple to measure temperature.更多还原