The specific application of thermal power plant conditions naturally involves using thermal resistors to measure temperature. The complex correlation between electron energy and transmission leads to different thermoelectric potential differences between different metal materials. A natural thermal resistor is a type of component, where the difference in thermoelectric potential between its two electrical stages indicates the temperature difference between the hot and cold ends of the thermal resistor. If the thermoelectric potential difference between all metal materials and aluminum alloys is different, it is unlikely to use thermal resistors to measure temperature. This potential difference is called the Scebeek utility. A pair of electrical conductors A and B with different raw materials, with one contact held at temperature T1 and two arbitrary ends held at a lower temperature To. Both the contact point and the arbitrary end are located in areas with uniform temperature, while both electrical conductors are subjected to the same temperature field. In order to accurately measure the thermoelectric potential difference between arbitrary terminals A and B, a pair of electrical conductors C of the same raw material are connected to electrical conductors A and B respectively at temperature to, and a detector with a temperature of T1 is received. Very significant, the Seebeck effect is never a condition at a node, but rather a condition related to the temperature field. In order to have a correct understanding of the characteristics of thermoelectric resistors, no matter how much attention is paid to this point, it cannot be ignored. The application scope of thermal resistance temperature measurement is very common, and the difficulties encountered are also various. Therefore, this chapter only covers multiple key aspects of thermal resistance temperature measurement. Thermal resistance is still one of the key methods for temperature detection in many industrial production, especially in ironmaking and crude oil chemical industry. However, with the progress of electromagnetics, the use of resistor thermometers in industrial production has become increasingly common, and thermal resistance is no longer the only and most important industrial thermometer. The advantages of comparing a resistor thermometer with a thermal resistor (accurate measurement of resistors and accurate measurement of thermoelectric potential difference) depend on the fundamental differences in the principles of the two components. The resistor thermometer indicates the temperature of the location where the resistor components are located, which is unrelated to the temperature field of the wire and along the wire. However, thermal resistance accurately measures the temperature difference between the cold end and the hot end based on the potential difference between the two electrical stages at the cold end. For an idealized thermal resistor, the potential difference is only related to the temperature difference between the two sides. However, for a specific thermal resistor, a certain type of asymmetry of the thermocouple wire in the temperature field can also cause a change in potential difference, which is still a factor limiting the accuracy of the thermal resistor. Seven internationally selected thermistors, which are simply referred to as "standardized thermistors," are listed in Table 5-3. Tables 5-3 also provide examples of the named components for each electrical level, the universal product names for each aluminum alloy, and the English letter numbers for their thermal resistors. This type of English letter numbering was initially introduced by Instrument Society of America in the UK, but now it is widely used globally. This English letter number can be used for various types