Infrapunaandureid
Infrapunaandureid, also known as infrared sensors, are devices that detect infrared radiation, a form of electromagnetic radiation invisible to the human eye. They operate by sensing the heat emitted by objects. Different types of infrared sensors exist, including passive infrared (PIR) sensors and active infrared (AIR) sensors. PIR sensors detect radiation emitted by a heat source, while AIR sensors emit their own infrared beam and detect its reflection off an object.
These sensors find widespread application in various fields. In security systems, PIR sensors are commonly used
The principle behind infrared detection often involves a thermopile or a pyroelectric crystal. When infrared radiation