Heat Sensor Circuit And Working Operation

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.

Heat sensor circuit and working operation.

Heat sensor circuit and working operation. The o 2 sensor s heater circuit is controlled in one of two ways. If the o 2 sensor heater circuit s negative wire goes directly to ground look for a short to power problem. When the set value of the temperature is high then it is indicated with the help of a glowing led.

The light sensor circuit is an electronic circuit designed using light sensor ldr darlington pair relay diode and resistors which are connected as shown in the light sensor circuit diagram. First is the positively controlled type of circuit. The principle of operation of heat detector circuit. You also note that before start testing the circuit first set the variable resistor.

Usually the heater circuit in this case is controlled by a relay. A simple heat detector circuit is shown in the figure that can be used as a heat sensor. The usage of the heat sensor circuit is inside your pc or in your kitchen. We can also use buzzer in place to led.

Light sensor circuit working operation. Remove the relay and retest the circuit.