Sources of infrared radiation: types, applications

There are different sources of infrared radiation. Currently, they are in household appliances, automation systems, security, and are also used for drying industrial products. Sources of infrared light, when properly used, do not affect the human body, so the products are very popular.

History of the discovery

For many centuries, the study of nature and the action of light engaged in outstanding minds.

Infrared light was discovered in the early 19 th century with the help of research by the astronomer W. Herschel. The essence of it was to study the heating capabilities of different solar areas. The scientist brought a thermometer to them and watched the temperature increase. This process was observed when the device touched the red border. V. Herschel concluded that there is a kind of radiation that can not be seen visually, but it is possible to determine using a thermometer.

Infrared rays: application

They are widespread in human life and have found their application in various fields:

• Warfare. Modern missiles and warheads, capable of independently aiming at the target, are equipped with night vision devices, which are the result of the application of infrared radiation.
• Thermography. Infrared radiation is used to study overheated or supercooled areas. Infrared imagery is also used in astronomy to detect celestial bodies.
• Gen. Infrared heaters are very popular, the functioning of which is aimed at heating the interior and walls. Then they give heat to the space.
• Remote control. All existing remote controls for TV, stoves, air conditioners, etc. Are equipped with infrared rays.
• In medicine, infrared rays treat and prevent various diseases.

Consider where these elements are applied.

Infrared gas burners

Infrared burner serves to heat various rooms.

At first it was used for greenhouses, garages (that is, non-residential premises). However, modern technology has allowed it to be used even in apartments. In people, such a burner is called a device of the sun, since in the switched-on state the working surface of the equipment resembles sunlight. Over time, such devices replaced oil heaters and convectors.

Main Features

Infrared burner differs from other devices by heating. Transmission of heat is carried out due to the radiation of infrared rays, which are not visible to humans. This feature allows the heat to penetrate not only into the air, but also to interior objects, which further increase the temperature in the room. The infrared radiator does not dry the air, because the rays are primarily aimed at interior and wall items. In the future, the transfer of heat will be from the walls or objects directly to the space of the room, and the process takes several minutes.

Positive sides

The main advantage of such devices is the quick and easy heating of the room. For example, in order to heat a cold room to a temperature of + 24 ° C, it takes 20 minutes. In the process, there is no movement of air, which contributes to the formation of dust and large contaminants. Therefore, infrared radiator is installed in rooms by people who are allergic.

In addition, infrared rays, getting to the surface with dust, do not cause its burning, and, as a result, there is no smell of burnt dust. The quality of the heating and the longevity of the appliance depend on the heating element. In such devices, a ceramic type is used.

Cost

The price of such devices is quite low and available to all segments of the population. For example, a gas burner costs from 800 rubles. A whole stove can be purchased for 4000 rubles.

Sauna

What is an infrared cabin? This is a special room, which is built of natural varieties of wood (for example, cedar). It is equipped with infrared radiators acting on a tree.

During heating, phytoncides are released - useful components that prevent the development or appearance of fungi and bacteria.

Such an infrared cabin in the people is called a sauna. Inside the room, the air temperature reaches 45 ° C, so it is quite comfortable to be in it. This temperature allows the human body to warm evenly and deeply. Therefore, heat does not affect the cardiovascular system. During the procedure, accumulated toxins and toxins are removed, the metabolism in the body is accelerated (due to the rapid movement of blood), and tissues are enriched with oxygen. However, the allocation of sweat is not the main property of an infrared sauna. It is aimed at improving well-being.

Infrared sauna effect on human

Such premises have a beneficial effect on the human body. During the procedure, all muscles, tissues and bones are warmed up. Acceleration of blood circulation affects the metabolism, which helps to saturate muscles and tissues with oxygen. In addition, the infrared cabin is visited in order to prevent various diseases. Most people leave only positive feedback.

Negative effects of infrared radiation

Sources of infrared radiation can cause not only positive effects on the body, but also harm it.

With prolonged exposure to the rays, the capillaries expand, resulting in redness or burns. The sources of infrared radiation cause special damage to the organs of vision - this is the formation of cataracts. In some cases, a person has convulsions.

The human body is affected by short rays, causing a heat stroke. With an increase in the temperature of the brain by several degrees, deterioration of the state is observed: darkening in the eyes, dizziness, nausea. A further increase in temperature can lead to the formation of meningitis.

Deterioration or improvement of the state occurs due to the intensity of the electromagnetic field. It is characterized by temperature and distance to the source of radiation of thermal energy.

Long waves of infrared radiation play a special role in various life processes. Short, however, affects the human body more.

How to prevent the harmful effects of infrared rays?

As mentioned before, a negative effect on the human body has a short thermal radiation. Consider examples in which IR radiation is dangerous.

To date, infrared heaters that emit temperatures above 100 ° C can harm health. Among them are the following:

• Industrial equipment that radiates radiant energy. To prevent negative impact, you should use protective clothing and heat-shielding elements, as well as conduct preventive measures among working personnel.
• Infrared device. The most famous heater is the oven. However, it has long been out of use. Increasingly, electric infrared heaters began to be used in apartments, country houses and cottages. In its design, a heating element (in the form of a spiral) is provided, which is protected by a special heat-insulating material. Such exposure to the rays does not harm the human body. The air in the heated area is not dried. The room can be heated in 30 minutes. First, infrared radiation heats objects, and already they and the whole apartment.

Infrared radiation is widely used in various fields, from industrial to medicine.

However, they should be treated with care, since the rays can have a negative effect on the person. Everything depends on the wavelength and the distance to the heating device.

So, we found out what sources of infrared radiation exist.