There are different classifications of thermal imaging cameras according to the working temperature, detection principle and wavelength. According to the working temperature, it can be divided into cooled thermal imaging camera and uncooled thermal imaging camera. The imaging detector of the cooled infrared thermal imager is equipped with an integrated cryogenic refrigeration and device, which can cool the detector to a low temperature for operation.
Next, as a professional thermal imaging camera manufacturer, we will introduce the difference between cooled thermal imaging cameras and uncooled thermal imaging cameras.
1. Response time
The cooling thermal imaging camera has unique advantages in the military, and its response time is a very good example. Because the detector response time of the cooling thermal imaging camera is at the microsecond level, it is very fast to detect the self-target and respond quickly. The response time of the uncooled type is generally at the millisecond level, and it is widely used in industrial fields.
2. Power consumption
When the cooled infrared thermal imager is working, the refrigerator needs to work to cool down, so it will consume more energy and consume more power.
3. Volume
Since the cooled thermal imager requires a refrigerator to work together, the cooled thermal imager is larger than the uncooled thermal imager.
4. Price
Cooled infrared thermal imagers are relatively expensive. Uncooled infrared thermal imagers are relatively low cost.
5. Sensitivity
When the refrigerated infrared thermal imager is working, the refrigerator works first to reduce its own temperature, so that it has higher sensitivity, higher precision, smaller error and wider detection temperature range when detecting other objects. When the uncooled infrared thermal imager is working, the sensitivity and accuracy will be worse, especially the non-uniformity of the uncooled infrared focal plane array has a greater impact on the measurement error.
6. Application scenarios
In the military field, the structure of the uncooled infrared thermal imager system is greatly simplified, the reliability, resolution and detection sensitivity are improved, and the cost is reduced. The infrared reconnaissance system using infrared focal plane array can effectively detect and track targets at long distances and under harsh conditions. The uncooled thermal imaging system is very suitable for the army's light weapons, as individual reconnaissance, night driving, light weapon sights, etc.
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