Thermocouple wire referred to as compensation wire, usually by compensation wire wire, insulation layer, sheath, shielding layer. Today Xiaobian will talk about the knowledge of thermocouple compensation wire, I hope this introduction can provide you with certain help. A pair of conductors with an insulating layer having the same nominal value of the thermoelectric motive force of the matching thermocouple within a certain temperature range (including room temperature) are connected to the thermocouple and the measuring device to compensate for the error caused by the temperature change at the point of connection between them and the thermocouple.

The thermocouple wire, the thermocouple's hot end temperature is the temperature of the part we want to measure. The thermocouple is usually installed in the measured position, while the temperature indicator and cold end temperature compensator are installed in the meter room far away from the thermocouple, the distance between the two can be tens of meters. Thermocouples used to measure high temperatures are usually made of expensive metals. For example, the thermocouple that measures the temperature at the outlet of the furnace is made of platinum-rhodium-molybdenum and is very expensive. Because only the temperature of the measured part is very high, if all the wires made of platinum, rhodium and cypress are used to lead the cold end of the thermocouple to the operating room, it will cause a lot of waste.