Linear temperature sensors are used to measure ambient air temperature. This sensor has a sensitivity of 1 degree Celsius, which means when the temperature increases or decreases the output voltage fluctuates 10mV accordingly.
The linear temperature sensor includes thermocouples, platinum resistance, thermal resistance and temperature semiconductor chips, parts commonly used in high temperature measurements. Platinum resistances are used in measurements of up to 800 Celsius, while the thermal resistance and semiconductor temperature sensors are more suitable for measuring temperature ranges of 100-200 degrees Celsius or below. Without external calibration or tuning, LM35 can provide ±1/4 Celsius degree temperature precision.