Theory Analysis of Thermocouple Temperature Measurement

The thermocouple is extremely wide application in temperature measurement. The active sensor has the advantages of simple structure, wide measuring range, high precision, signal stability and other advantages and is widely used in the detection of furnace and pipeline temperature. The author analyzes the theory of measurement of thermocouple, and put forward a kind of originality of thought. According to this idea, the author derives several laws of thermocouple, and finds that a simple estimation method. Finally, some of the common thermocouple method measurement results are given.