Infrapunakiirguseks

Infrapunakiirguseks is the Finnish term for infrared radiation. It is a type of electromagnetic radiation with wavelengths longer than visible light and shorter than microwaves. Infrared radiation is invisible to the human eye but can be detected by its heat.

The infrared spectrum is divided into several regions, including near-infrared, mid-infrared, and far-infrared. Near-infrared radiation has wavelengths closest to visible light and is used in applications like remote controls and fiber optics. Mid-infrared radiation has longer wavelengths and is commonly used in thermal imaging cameras and spectroscopy. Far-infrared radiation has the longest wavelengths and is associated with heat emitted by objects.

Infrared radiation is produced by all objects that have a temperature above absolute zero. The hotter an object is, the more infrared radiation it emits. This property makes infrared technology useful for a wide range of applications, including medical diagnostics, industrial process monitoring, and astronomy.

In everyday life, we experience infrared radiation as heat from the sun, a campfire, or a warm object. Many devices utilize infrared radiation, such as remote controls for televisions, security sensors, and even some types of heaters. Thermal imaging cameras, which detect infrared radiation, are used to visualize temperature differences and are employed in fields such as building inspection, search and rescue operations, and military surveillance.