sales hotline (495) 229-39-93 About company Reviews Technology Video Question answer Where can I buy? Product Catalog Thermal imaging sights Portable thermal imagers Combined devices Night-vision devices Stabilized binoculars Devices in development Accessories Services Personalized service Installation and sighting of sights Service Individual development How did you hear about us? Search engines contextual advertising Banner advertising Hunting portal Exhibition "ARMS & Hunting 2011" "Hunting and Fishing XXI" magazine Magazine "MasterRug" Safari magazine Hunting Dvor magazine Hunting magazine (Astrel) Other Thermal imaging technology The radiation (visible light) that the human eye is able to capture and recognize is only a narrow segment of the entire spectrum of radiation. With the development of technology, a person expands his capabilities, inventing ways to see previously inaccessible things. For example heat radiation. Thermal (infrared) radiation is one of the most common on the planet. Every object with a temperature different from 0 degrees Kelvin (-273 degrees Celsius) has thermal radiation, and the higher the temperature of the object, the higher its radiation in the infrared spectrum. It remains only to "take readings" from objects or territories of interest. For this, special devices are used.- thermal imagers. The device of a thermal imager resembles a conventional video camera. A similar design is a lens that focuses radiation on a detector, and a detector that captures thermal radiation. The difference is in materials. Conventional glass lenses cannot be used for thermal imaging technology, since glass does not transmit the wave of the spectrum of interest to us. Proof of this is found in every modern building - glass insulating glass units perfectly retain heat inside the building, even in the most severe frosts. For the manufacture of optical elements of thermal imagers, a material with special properties is used, a chemically pure rare earth metal germanium (Ge, serial number 32 in the periodic table). Lenses made of this material are visually opaque, their surface resembles polished steel. But they are permeable to heat waves and can work with them, just like glass with the visible spectrum of light. Unfortunately, due to the high cost of the material, lenses for thermal imaging cameras are very expensive. The world's leading manufacturers are constantly looking for cheaper materials that can replace germanium, but so far no full-fledged substitute has been found. Thermal camera detectors are also different from conventional CCDs used in video cameras. They are made on the basis of amorphous silicon or vanadium oxide. There are other options, but these two are the most common. Every single pixelis a microbolometric element, for example a vanadium oxide thermistor. The thermistor is made in the form of a "bridge" raised to a height of several micrometers above the silicon substrate, where the measuring circuits and the "logic" of the matrix are located. The bridge is connected to the substrate by thin electrically conductive “legs” -contacts with low thermal conductivity. To use the radiation not absorbed by the bridge, a metal coating is applied to the substrate that reflects infrared radiation, and to reduce convection, air is evacuated. When the element is heated, the resistance of the bridge changes, which is detected by sensitive measuring circuits in real time. The temperature resolution of MBM (the ability to distinguish the temperature difference) in modern samples ranges from 20-100 mK. The detector (microbolometer) perceives thermal radiation , which is focused on it by the lens, then, with the help of an electronics unit, the signal is decoded and converted into a video image on a mini-display, which the user's eye looks at. The picture that a person sees is based on the temperature difference between objects in the field of view of the thermal imager, and is, in essence, a temperature map that opens up tremendous opportunities for the user. Company About company news Technology Video Question answer Catalog Thermal imaging sights Portable thermal imagers Combined devices Night-vision devices Stabilized binoculars Services Personalized service Installation and sighting Service Individual development Where can I buy? Sales office addresses FLIR Scout thermal imagers PULSAR thermal imagers © FORTUNA 2010-2017 - ТЕПЛОВИЗРЫ И ТЕПЛОВИЗИОННЫЕ ПРИЦЕЛЫ Тел.: +7 (495) 229-39-93