#shorts - How Flame sensor look like? | Arduino | Arduino projects | Sensors

A flame sensor definition is a type of detector that is used to detect as well as react to the occurrence of a fire or flame. A flame sensor frequently responds faster & more precisely as compared to a heat or smoke sensor because of the mechanisms it utilizes to notice the flame. Flame sensors are usually used to verify whether the furnaces are functioning correctly. These sensors are also used in an ignition system to get precise actions otherwise to inform the operator.

Flame sensors use UV (Ultraviolet) or IR (Infra-Red) or UV-IR technology to identify flames below a second. These sensors react to a detected flame based on the installation, although it includes sounding an alarm, disabling a fuel line & activating a fire control system.

The flame sensor with UV technology works by simply sensing the UV radiation. Generally, all fires generate UV radiation at the ignition point so, in case of a fire, the sensor would become alert of it & generate a series of pulses that are changed by detector electronics and gives an alarm output.
Flame Sensor Arduino
The flame sensor interfacing with a microcontroller like an Arduino is shown below. Here, the flame sensor used is an Infrared flame sensor.

This sensor is available in small size and is used to detect a source of fire or any other clear light source. Basically, this kind of sensor detects infrared light with 760 nm to 1100 nm range wavelength that is generated from the light source or fire or flame. This IR flame sensor includes a YG1006 Phototransistor sensor which has high sensitivity & high speed.

Infrared sensor modules are available in two types where one type includes three pins and the other type includes four pins. The main difference between these two modules is; the three-pin module provides only digital output whereas four pin module provides both analog and digital outputs. So, these two modules can be used easily with different microcontroller boards. Here there pin flame sensor is used in this interfacing.

This 3-pin flame sensor module includes different components like phototransistor, trimpot, LM393, power LED and output LED.

Pin1 (VCC): This is a 5V power supply pin.
Pin2 (GND): This is a GND pin.
Pin3 (OUT): This is a digital output pin.
Specifications
The specifications of the flame sensor include the following.

The range of operating voltage ranges from 3.3V to 5V.
The operating current is 15 mA.
The comparator chip used is LM393.
The type of sensor is YG1006 Photo Transistor.
Sensitivity can be adjusted by a potentiometer.
The output type is Digital o/p or Digital & Analog output.
Red LED is for power and green LED is for output.
The range of the spectrum is from 760nm to 1100nm
The detection angle is from 0 to 60 degrees.
Operating temperature ranges from -25℃ to 85℃.
The size of PCB is 3cm X 1.6cm.