Modeling the Process of Determination of the Instantaneous Error of the Thermocouple During Operation

The technique for simulating the process of developing thermoelectromotive force by the inhomogeneous thermocouple during the change of the temperature field along its legs is proposed in this paper. This allows determining the instantaneous error of the thermocouple during their operation without the use of working standards. There were revealed new relationships between the maximum and instantaneous errors due to drift and inhomogeneity. The sum of absolute values of these errors is constant, and this relationship holds in any temperature field.