What is PT100 thermocouple temperature senor ?

 PT100 thermocouple temperature senor is the platinum thermal resistance, whose resistance value is proportional to the temperature change.The relationship between the resistance value of PT100 and the temperature variation is as follows: when the temperature of PT100 is 0℃, its resistance value is 100 ohms, and at 100℃, its resistance value is about 138.5 ohms.Its industrial principle: when PT100 has a resistance of 100 ohms at 0 ° c, its resistance increases at a constant rate as the temperature rises.

PT100 thermocouple temperature senor is the platinum thermal resistance is the most commonly used temperature detection instrument in the low and medium temperature region.Thermal resistance temperature measurement is based on the characteristic that the resistance of a metal conductor increases with the increase of temperature.

PT100 thermocouple temperature senor is characterized by high measurement accuracy and stable performance.Platinum thermal resistance is the most accurate, which is not only widely used in industrial temperature measurement, but also made into a standard reference instrument.



PT100 thermocouple temperature senor platinum resistance and the selection of K type thermocouple is the biggest difference between temperature range, the choice of thermal resistance is measuring the temperature of the low temperature sensor, measure temperature in commonly - 200 ~ 800 ℃, and the K type thermocouple temperature sensor in measuring high temperature, average temperature in 400 ~ 1800 ℃, when the choice if measuring temperature at 200 ℃ or so, should choose to thermal resistance measurement, you should choose if measuring temperature at 600 ℃, if the temperature of 1200 ~ 1600 ℃ should choose S type or B type thermocouple.