Diagram Of Thermistor. These thermistors are basically not used at high temperatures. Working of thermostat circuit.
Protection of power semiconductors by ptc thermistor so these were some of the basic applications of thermistors. A thermistor is a temperature sensing element composed of sintered semiconductor material and sometimes mixture of metallic oxides such as mn ni co cu and fe which exhibits a large change in resistance proportional to a small change in temperature. Lead wires are drawn out from the thermistor sensing element as shown in the diagram.
They are widely used as a way to measure temperature as a thermistor thermometer in many different liquid and ambient air environments.
In this circuit the analog pin in the arduino is connected with the thermistor and can provide the adc values only so the electrical resistance of thermistor is not calculated directly. And thermistor selection to understand practical thermistor selection trade offs consider the system block diagram shown in figure 3. It shows the components of the circuit as simplified shapes and the power and signal friends between the devices. The leads of the thermistor are connected to a wheat stone bridge as shown in the diagram.