Application of NTC thermistor in temperature measuring

Temperature is one of the physical variables that people generally care about in real life. It is inseparable from our daily life, production and scientific research activities. The perception and measurement of temperature changes have always been essential in human life and production. The temperature-measuring NTC thermistor has already replaced the higher cost because of its more sensitive negative temperature characteristics, higher material constant (B value), faster response speed, reliable performance and low cost. Pt100 is widely used in all applications where temperature measurement is required.

When the ambient temperature is greater than T1, the error is amplified, and the drive system is turned off. When the ambient temperature is less than T2, the error is amplified. A3 starts the heating unit in reverse to heat the system.