How IR Flame Sensor Module Works
In general, infrared radiation is the transfer of energy from one place to another through electromagnetic waves. Every object emits and absorbs infrared radiation. If an object is hotter, then it radiates more energy. When this emitted energy hits an object, some of the energy will be absorbed by the object while the remaining part will get reflected back. When the object absorbs this energy, its temperature increases. So what does a flame sensor do is, the photodiode present in the sensor senses the IR waves emitted by the burning object, and then changes its resistance accordingly, which in turn changes the output of the sensor. There are different types of flame sensors, some of them are Ultraviolet flame sensors, Near IR array flame sensors, IR3 flame detection sensors. The application of flame sensors is in a number of hazardous environments, such as industrial gas turbines, domestic heating systems, hydrogen stations, etc. The flame sensor which we are going to discuss sense...