What is thermal camera？

(1) The temperature field on the surface of the object can be displayed intuitively. Thermal camera can measure the temperature of each point on the surface of the object and display it in image form.

(2) The temperature resolution is high, and the thermal camera can display the temperature values ​​of multiple points at the same time, so it can accurately distinguish small temperature differences.

(3) Data storage and computer processing can be carried out. The video signal output by thermal camera can be stored in digital memory or recorded with video tape, so that it can be maintained for a long time and can be processed by computer.

The principle of thermal camera is to use infrared detector and optical imaging objective lens to receive the infrared radiation energy of the measured target, and reflect the energy distribution pattern on the photosensitive element of the infrared detector to obtain infrared thermal image. This thermal image is similar to The heat distribution field on the surface of the object corresponds to it.

In layman's terms, a thermal imaging camera converts the invisible infrared energy emitted by an object into a visible thermal image. The different colors on the top of the thermal image represent different temperatures of the measured object.

For the application of human body temperature measurement, it will consider the sensitivity of the device, whether it can quickly and accurately capture the face and measure the temperature, consider whether the device can work online for a long time, and consider whether the device can adjust the relevant error parameters according to the changes in the ambient temperature in the four seasons. Wait.

In scientific research projects, we will consider whether the resolution of the equipment is high enough, whether the details of the measured object can be clearly observed, and whether the subtle changes in its temperature can be detected. Different industries have their own priorities, choose according to needs, and use the best.

With the maturity of thermal imaging technology, various low-cost thermal imaging cameras suitable for civilian use have come out one after another. In industrial production, many equipment are often at high temperature, high pressure, and high-speed operation. The use of thermal imaging cameras to detect and monitor these equipment can not only ensure the safe operation of the equipment, but also find abnormalities and eliminate hidden dangers in time.

At the same time, thermal imaging cameras can also perform quality control and management on industrial products. For example, in the steel industry, the ablation and wear of refractory materials used in blast furnaces and converters can be observed by infrared thermal imaging cameras, and timely measures can be taken to prevent accidents. For another example, in the petrochemical industry, thermal imaging cameras can monitor the operation of production equipment and pipelines, and provide data such as precipitation formation, flow blockage, heat leakage temperature, and thermal insulation deterioration at any time.