Block Diagram Of Thermistor. Thermistor resis tance is sensed by forcing a constant current. Q is the net heat flow into port a.
Temperature sensor solutions are used to measure temperature and have a wide range of uses in industrial commercial applications. Temperature based fan speed controller 8. Block diagram of temperature measurement system with thermistor is given in figure 1.
Ptc thermistor symbol the following figure shows the symbol used for ptc thermistors in a circuit diagram.
It means that the resistance of the thermistor varies with change in temperature. Ptc thermistor symbol the following figure shows the symbol used for ptc thermistors in a circuit diagram. Temperature measurements are made using rtd resistance temperature devices thermistor or thermocouple. The led and buzzer work as an indicator.