infrapunisensori

Infrapunisensori, often referred to as infrared presence sensors or passive infrared (PIR) sensors, are electronic devices that detect infrared radiation. This radiation is emitted by all objects with a temperature above absolute zero, including living beings. The sensor itself is typically a thermopile or pyroelectric sensor that measures changes in the amount of infrared radiation falling on it. When an object moves into the sensor's field of view, it causes a change in the amount of infrared radiation detected, which the sensor then converts into an electrical signal.

These sensors are commonly used in security systems to detect intruders, as well as in automatic lighting systems to turn lights on or off based on occupancy. Their passive nature means they do not emit any radiation themselves, making them energy-efficient and undetectable. The detection range and sensitivity of an infrapunisensori can vary depending on its design and application. They are sensitive to changes in temperature and motion within their detection area. Factors such as ambient temperature, the size and speed of the moving object, and obstructions can influence their effectiveness. Their widespread adoption is due to their reliability, cost-effectiveness, and low power consumption.