With the development of society and the progress of science and technology, the demand for infrared thermal camera in all walks of life is increasing, because it can not only improve their own competitiveness, but also improve the production efficiency of enterprises.
I. Structure of infrared thermal camera
Infrared thermal camera is basically composed of four parts, optical system, detector, signal processor and display. The core component of this is the infrared detector.
Infrared thermal camera is the use of infrared detector, optical imaging lens and light machine scanning system to accept the infrared radiation energy distribution of the measured target figure reflected in the infrared detector photosensitive element, between the optical system and infrared detectors, there is a light engine scanning mechanism of infrared thermal image of the scanned object to be tested, and focus on the unit or spectroscopic detector, the detector converts infrared radiant energy into electrical signals, processing, conversion, or standard video signal enlargement through the television screen or monitor shows that the infrared thermal image map.
This hot like figure and the corresponding thermal field distribution on the surface of the object, due to the target object to be tested in all parts of the distribution of thermal infrared radiation signal is very weak, compared with optical image, lack of hierarchy and stereo feeling, therefore, for more effectively in the process of actual infrared thermal field distribution of the measured target, usually adopt some auxiliary measures to increase the utility function instrument, such as image brightness, contrast, the control of compaction standard calibration, etc.
II. The advantages of infrared camera
1. The temperature measurement range is wide. According to the different models, the range of 0℃ to 2000℃ can be generally measured;
2. High sensitivity, according to the model, can distinguish 0.1℃ or less temperature difference;
3. It will not interfere with the temperature field of the measured target;
4. Non-contact measurement is adopted to ensure safety;
5. Short response time allows rapid thermal diagnosis of the equipment;
6. Thermal cameras can measure the temperature of moving objects, but it is difficult to do so with ordinary thermometers;
7. A microlens can be used to measure the temperature of a target a few micrometers or less.