Heat Sensor Circuit And Working Operation

When the set value of the temperature is high then it is indicated with the help of a glowing led.

Heat sensor circuit and working operation.

First is the positively controlled type of circuit. If the o 2 sensor heater circuit s negative wire goes directly to ground look for a short to power problem. Working of the circuit is simple when there is heat or increase in temperature to the level where it crosses the threshold set by pot then the collector current increase and led starts illuminating slowly. The principle of operation of heat detector circuit.

Light sensor circuit working operation. Heat sensor circuit and working operation. Remove the relay and retest the circuit. You also note that before start testing the circuit first set the variable resistor.

The o 2 sensor s heater circuit is controlled in one of two ways. We can also use buzzer in place to led. The usage of the heat sensor circuit is inside your pc or in your kitchen. A simple heat detector circuit is shown in the figure that can be used as a heat sensor.

Usually the heater circuit in this case is controlled by a relay. The main property of a heat sensor is to sense the heat which is present around the sensor.