Features and Advantages of Thermal Imaging Technology
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- Issue Time
- Jun 17,2021
Summary
At present, thermal imaging technology has been widely used in various fields, this article will specifically introduce the characteristics and advantages of thermal imaging technology.
Thermal imaging technology can obtain thermal radiation images of objects and convert them into electrical signals. And then use the processed electrical signal to drive the display to produce a high-tech that can be used by the human eye to observe thermal images. The following are the specific features and advantages of thermal imaging technology.
Features of thermal imaging technology
1. Universality
The objects around us can emit visible light only when their temperature is above 1000°C. In contrast, all the objects around us whose temperature is above absolute zero (-273°C) will constantly emit thermal infrared rays. For example, we can calculate that the thermal infrared energy emitted by a normal person is about 100 watts. Therefore, thermal infrared (or thermal radiation) is the most widespread radiation in nature.
2. Penetrability
The atmosphere, smoke, etc. absorb visible light and near-infrared rays but are transparent to thermal infrared rays of 3 to 5 microns and 8 to 14 microns. Therefore, these two mid-wave bands and long-wave bands can enable people to clearly observe the situation ahead on a completely dark night or on a battlefield filled with clouds. It is precisely because of this feature that thermal infrared imaging technology military provides advanced night vision equipment and installed all-weather forward vision systems for aircraft, ships, and tanks.
3. Heat radiation
The amount of heat radiation energy of an object is directly related to the temperature of the surface of the object. This characteristic of thermal radiation allows people to use it to perform non-contact temperature measurement and thermal state analysis of objects, thereby providing an important detection method and diagnostic tool for industrial production, energy saving, environmental protection, and so on.
Advantages of thermal imaging technology
1. Long-range
General infrared light products have an imaging distance of fewer than 100 meters. However, infrared thermal imaging technology can image the infrared rays radiated by objects without being restricted by ambient light and illumination light. Generally, telephoto thermal imaging cameras can observe people over 3 kilometers and vehicles over 6 kilometers and can see further with Quanhom long EFL lenses ideal for long-range surveillance.
2. Strong concealment
It is safer and more confidential than radar and laser detection, and it is not easy to interfere. Because it receives signals passively and does not actively transmit detection signals, it will not be easily detected by counter-reconnaissance means.
3. Strong penetrating ability
Infrared thermal radiation has a stronger ability to penetrate fog, haze, rain, and snow than visible light, so the imaging effect of the infrared thermal imaging system under severe weather conditions is almost unaffected. Especially the 8-14um long-wave infrared optical lens has a stronger ability to penetrate fog.
4. Working around the clock 7/24, can resist the interference of strong light
The scenery at room temperature constantly emits infrared radiation including mid-wave infrared (3-5 μm), especially long-wave infrared (8-14 μm) with a huge number of photons. In these two infrared bands, there is no day and night. Obviously, if you can perceive the thermal image of the scene, it will be transparent 24 hours a day. Therefore, with the help of thermal imaging technology, people can observe at night more effectively. In addition, infrared thermal imaging technology does not rely on illuminating light and ambient light but relies on the radiation of the target and the background to produce scene images. Therefore, the infrared thermal imaging system can work 24 hours a day, and it will not be affected by visible light intensity like other night vision equipment. Light interference. The low-light camera cannot image without ambient light.
5. Can identify hidden targets
The ability to recognize camouflaged targets is better than visible light, and it has a strong anti-stealth ability. Because ordinary camouflage is mainly to prevent visible light observation. The crimes committed by criminals are usually hidden in the grass and woods. Due to the harsh outdoor environment and human visual illusions, they are prone to misjudgment. Infrared thermal imaging technology can detect hidden thermal targets through camouflage and grass and leaves. The temperature and infrared radiation of the human body and vehicles are generally much greater than that of vegetation and trees, so it is not easy to camouflage, and it is not easy to make false judgments.
The infrared optical lens we produce has achieved a good realization of the characteristics and advantages of thermal imaging technology and can achieve high accuracy and high-efficiency goals in extreme weather and harsh environments. If you want to know more about thermal imaging technology after reviewing the above content, you can contact us for more detailed solutions.
A professional manufacturing team and excellent R&D technology have made us one of the leading manufacturers of Opto-electromechanical components. We have accumulated rich experience in the development and production of thermal infrared lenses (infrared lenses include LWIR, MWIR, SWIR), and we have also established a complete quality inspection system. We are always committed to providing customers with quality products and services. If you want to buy our infrared optical lens, please contact us immediately!