How to improve the effect of automatic temperature control of - Shanghai dragon instrument electric appliance co. , LTD

Petrochemical industry to stop in the consumption of chemical reaction and changing needs talent in a certain temperature and pressure environment smoothly to stop, for real-time monitoring of temperature change, fine control over temperature range, necessary in consumer laid a certain number of temperature instrument. Currently about consumption mainly adopts contact measurement temperature, thermocouple, heat resistance and temperature measuring device for measuring the temperature data, and by means of field bus technology to achieve automatic temperature control effect. Industrial thermocouple and thermal resistance to maintain the shape of the casing is the same, some temperature measuring element shape is very small, such as armor type, the shape and the same at all. Thermocouple: principle of thermoelectric effect, its index number is S, B, E, K, R, J, T seven canonical model. The heating effect of the principle of thermal resistance: resistance ( Conductor or semiconductor resistance with the temperature change and change this feature) , the index number of Pt10, Pt100, Pt1000, Cu50 and Cu100. The application of the Pt100 and Cu50 is most common. See the wires of a temperature measuring element, usually thermocouple as long as the two lead, if there are three root lead is the thermal resistance.