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不均匀热电势沿铜铁合金热电极长度上的分布可描述为各态历经的平稳的随机过程。用不均匀热电势的随机波动性的统计特征来表征铜铁热电极的总体特性，揭示铜铁热电极制造工艺的稳定性和新产品的可靠性。实验采用双介质法原理，热电极样品长度大于１０ｍ，移动速度为４．８ｍｍ／ｓ。同时测量了配对的镍铬电极的动态不均匀性，并与铜铁电极进行了对比。
The distribution of inhomogeneous thermoelectric potential along the length of the hot-rolled copper-iron alloy electrode can be described as a stationary random process of the various states. The statistical properties of the stochastic volatility of the non-uniform thermoelectric power are used to characterize the overall characteristics of the copper-iron hot electrode and reveal the stability of the manufacturing process of the copper-iron hot electrode and the reliability of the new product. The experiment uses the double-media method principle, the length of the hot electrode sample is more than 10m and the moving speed is 4.8mm / s. The dynamic inhomogeneity of the matched Ni-Cr electrodes was also measured and compared with the Cu-Fe electrodes.