Correcting the errors due to drift and due to acquired thermoelectric inhomogeneity in the thermocouple with controlled profile of temperature field
Thermocouples are the most popular sensors of temperature used in measuring praxis for temperatures in the range 600–2500 ºC, in spite of their drawbacks. The most important among them is their error, which is often too big for many cases in industry and science. The total error of thermocouples is much greater than that of their measurement channels. The main errors proper for thermocouples are as follows: 1. Considerable initial deviation of their conversion characteristic (CC) from the nominal one.