The scope of application, application principle and characteristics of infrared thermal imager

What is infrared thermal imaging?

Infrared, also known as infrared radiation, refers to electromagnetic waves with a wavelength of 0.78 to 1000 microns. The part with a wavelength of 0.78 to 2.0 microns is called near-infrared, and the part with a wavelength of 2.0 to 1000 microns is called thermal infrared. Camera imaging to get pictures, TV camera imaging to get TV images, both are visible light imaging. All objects in nature can radiate red lines. Therefore, the detector is used to measure the infrared difference between the target itself and the background, and different red images can be obtained. The image formed by thermal infrared is called a heat map. The thermal image of the target is different from the visible light image of the target. It is not the visible light image of the target that the human eye can see, but the image of the temperature distribution on the surface of the target. In other words, infrared thermal imaging prevents the human eye from directly seeing the surface temperature of the target. The distribution becomes a thermal image that can be seen by the human eye and represents the temperature distribution of the target surface.

Features of infrared thermal imaging

All objects in nature with a temperature above absolute zero (-273°C) emit infrared rays, and infrared rays (or thermal radiation) are the most widespread radiation in nature. The atmosphere, smoke clouds, etc. absorb visible light and near-infrared rays, but are transparent to infrared rays of 3-5 microns and 8-14 microns. Therefore, these two wavelengths are called the "atmospheric window" of the infrared. Using these two windows, we can clearly observe the situation ahead on a completely dark night, or in a harsh environment full of smoke. It is because of this feature that infrared thermal imaging technology can be used in nighttime surveillance and forest fire monitoring systems for security.

Infrared thermal imager

A device that uses infrared thermal imaging technology to detect the infrared radiation of the target object, and converts the temperature distribution image of the target object into a video image by means of photoelectric conversion and signal processing. We call it an infrared thermal imager. Infrared thermal imagers are roughly divided into two categories: refrigerated and non-refrigerated. At present, the world's most advanced infrared thermal imager (thermal imager or infrared thermal imager), its temperature sensitivity can reach 0.03C. Typical representatives are TONTUBE brand S234W S253 S256 TM1-Z6 TM1-Z7 and other models. Interested friends can click the link below to learn more.

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Application of infrared thermal imager

Below are some of the facilities that require an inspection with a thermal imaging camera (thermal imager or thermal imaging camera):
1. Electrical installations: It can be found that the joints are loose or poorly connected, unbalanced load, overload, overheating and other hidden dangers. The potential effects of these hidden dangers are arcing, short circuit, burnout, and fire.
2. Transformer: The hidden dangers that can be found are loose joints, overheating of bushings, poor contact (tap changer), overload, unbalanced three-phase load, and blockage of cooling pipes. The effects are arcing, short circuit, burning, and fire.
3. Motors and generators: The hidden dangers that can be found are excessive bearing temperature, unbalanced load, short circuit or open circuit of windings, heating of carbon brushes, slip rings and collector rings, overload and overheating, and blockage of cooling pipes. The effect is that faulty bearings can cause damage to the iron core or winding coils; faulty carbon brushes can damage slip rings and collector rings, which in turn damage the winding coils. It may also cause damage to the drive target.
4. Electrical equipment maintenance inspection, roof leak inspection, energy-saving inspection, environmental inspection, security anti-theft, forest fire prevention, non-destructive testing, quality control, medical inspection, etc. are also very beneficial.
5: Diagnose human diseases, use meridian science, research work on the human brain and its application in researching disease treatment methods; especially in the diagnosis of asthma, paralysis, lumbar disc herniation, motion sickness, malignant tumors and other diseases with non-radioactive , The advantages of non-contact measurement of a multi-organ whole body scan. It is a useful method for comprehensively diagnosing a certain disease in the human body.
6: Monitoring of building exterior walls. The surface temperature can give us a lot of information about the building structure, ductwork, heating, ventilation and air-conditioning systems and electrical systems. When looking through an infrared lens, problems that are usually invisible to the naked eye will emerge. Using thermal imaging cameras, air leaks, moisture build-up, blocked pipes, structural features behind walls, overheated electrical wiring, etc. can be detected, and the data can be visualized and documented. By scanning the surface with this tool
By tracing, you can quickly spot temperature changes that often represent potential problems and document the data in a detailed graphical report.
7: The application of infrared thermal imager in the natural environment. Monitor the natural environment, such as forest fires, landslides, volcanic eruptions, etc.