What can infrared thermal imagers do?

Imaging principle of infrared thermal imager

Infrared thermal imager is a magical technology called "infrared thermal imaging" that can convert thermal radiation images into visible light images. The principle of thermal imaging, it allows people to see things that were invisible in the past. The device that realizes this conversion is called a thermal imager. Through this thermal imager, we can see the scene like daytime in the dark night. The latest generation of infrared thermal imagers (VA-MTB-900) not only has thermal imaging function, but also has CMOS optical system, laser ranging and more practical functions. VA-MTB-900 infrared thermal imager will break people's cognition of traditional thermal imagers and lead new infrared thermal imagers to a higher stage.

Infrared thermal imager technology is based on the fact that all objects generate heat. Although many objects cannot be seen from the outside, there is still a distinction between hot and cold on them. With the help of the colors on the thermal map, we can see the distribution of temperature. Red and pink indicate higher temperatures, and blue and green indicate lower temperatures.

Infrared thermal imagers can see the infrared radiation distribution of an object and convert it into a visible thermal image. Infrared thermal imagers use photoelectric technology to detect infrared specific band signals of thermal radiation from an object, convert the signals into images and graphics that can be distinguished by human vision, and further calculate the temperature value. This allows humans to "see" the temperature distribution on the surface of an object without directly observing the visible light image of the object. The different colors of the infrared thermal imager represent the different temperatures of the object being measured. In this way, the temperature distribution of the object can be observed even in the absence of light.

Common uses of infrared thermal imagers

(1) Fault diagnosis

Infrared thermal imagers play a significant role in fault diagnosis. They can check the working status of machines and equipment to detect potential problems such as corrosion, looseness, and wear. This non-contact detection method not only improves the accuracy of diagnosis, but also greatly speeds up the diagnosis. Therefore, infrared thermal imagers provide strong technical support for fast and accurate fault diagnosis.

(2) Fire prevention and detection

Infrared thermal imagers have significant applications in fire prevention and detection. First, in the fire control system, thermal imagers are equipped on tanks for night vision and target tracking. Its working band is 8-14μm, and the detector material is mercury cadmium telluride, which makes the identification distance of tanks reach more than 2000m. In addition, infrared thermal imagers form images by reflecting the surface temperature of objects, making them effective fire alarm equipment. In the forest, this technology can quickly detect fires caused by hidden fires, accurately determine the location and scope of the fire, and find the fire point through the smoke, so as to achieve early prevention and early extinguishing.

(3) Discovering hidden dangers

Infrared thermal imagers play an important role in security monitoring and protecting personal and property. It can effectively detect fire hazards, smoke and potential safety hazards, and provide strong support for public safety. In the process of fighting the epidemic, temperature measuring thermal imagers can quickly screen people with fever and effectively control the spread of the disease. In addition, infrared thermal imagers are also widely used in anti-terrorism, investigation and drug control tasks. They can quickly lock suspects and find hidden people to ensure the efficient completion of tasks.

(4) Inspection of building structures

Infrared thermal imagers play an important role in the inspection of building structures. Engineers can use this equipment to find and locate defects in buildings, such as leaks in roofs, pipes, water leaks and cracks. These inspections not only help ensure the quality of the building, but also provide accurate information when problems occur, such as home heating failures, to help maintenance personnel quickly identify and solve problems, such as blockages in heating pipes.

(5) Guidance

Infrared guidance is a technology that uses infrared detection instruments to capture and track the energy radiated by the target itself to achieve ground-seeking guidance. This technical means occupies an important position in precision-guided weapons and has been widely used in multi-directional guided weapons such as air-to-air, air-to-ground, and ground-to-air.

(6) Monitoring the environment

Infrared thermal imagers play an important role in early warning and monitoring of dangerous conditions in dams, lakes, and mountains. Infrared thermal imagers can achieve all-weather monitoring in severe weather such as rain, snow, smoke, fog, and haze, and accurately identify leaks, cracks and collapses in reservoir dams and water flow sizes. Since water temperature is usually lower than the ambient temperature and the emissivity of water is different from that of surrounding objects, infrared thermal imagers can distinguish water bodies and thus warn of possible landslides. This technology not only improves monitoring accuracy, but also provides strong support for preventing natural disasters.

(7) Displaying the temperature field on the surface of an object

Infrared thermal imagers are mainly used to intuitively display the temperature field on the surface of an object. Unlike infrared thermometers that can only display the temperature value of a small area or a certain point on the surface of an object, thermal imagers can simultaneously measure the temperature of various points on the surface of an object and display it in the form of an image. This function makes thermal imagers widely used in many fields such as industrial testing, medical diagnosis and security monitoring.

(8) Personnel search and rescue

Infrared thermal imagers play a significant role in personnel search and rescue. Traditional search and rescue methods often use carpet searches, which are inefficient and easily miss the golden time for rescue. Infrared thermal imagers can quickly and accurately locate trapped people, greatly improving rescue efficiency while reducing misjudgments and gaining the maximum search and rescue time for trapped people.

(9) Border patrol

Infrared thermal imagers play an important role in border patrol. This equipment can monitor land borders over long distances under adverse weather conditions, especially for drug trafficking, smuggling and other illegal activities. By capturing and analyzing thermal images in real time, infrared thermal imagers can promptly detect and stop or arrest offenders, thereby greatly improving border security.

(10) Power industry inspection

Infrared thermal imagers play a key role in power industry inspection. They are mainly used to inspect electrical equipment such as high-voltage contactors, fuse panels, main power circuit breaker panels, contactors, distribution lines, motors and transformers. In this way, it is possible to effectively check whether there are thermal hazards in electrical equipment, thereby preventing accidents such as fire and shutdown.

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