The Difference Between Infrared Thermal Imaging cooled and uncooled detectors
Sales Engineer:Grace Gao
Email:grace@bri-elec.com
WhatsApp:0086-199 2997 5286
Thermal imaging cameras with cooled detectors have many advantages over thermal imaging cameras with uncooled detectors. However, cooled thermal imaging cameras are more expensive. Cooled thermal imaging cameras have imaging sensors with integrated coolers that reduce the sensor temperature to low temperatures. It is necessary to lower the thermally induced noise to a level below that of the imaged scene signal by lowering the sensor temperature.
The moving parts in the cooler have extremely fine mechanical tolerances, and they wear out over time, and the helium slowly seeps through the gas seals. Eventually, the cooler must be repaired after 10,000-13,000 operating hours.Uncooled infrared thermal imaging cameras have the following problems: When should cooled infrared thermal imaging cameras be used in R&D applications?
The answer is: it depends on the use.
If you want to grasp subtle temperature differences, require high image quality, or apply to fast/high-speed applications, if you want to see the thermal characteristics of extremely small targets or measure their temperature, if you want to detect a very specific point in the electromagnetic spectrum To visualize some thermal phenomena, or if you want to use a thermal imaging camera simultaneously with other measurement equipment, a cooled infrared thermal imaging camera is undoubtedly your wise choice.
Compared with common cooled infrared thermal imaging cameras, uncooled thermal imaging cameras have more advantages in service life, size, price and power consumption. However, compared with uncooled thermal imaging cameras, cooled thermal imaging cameras have It has more advantages in terms of accuracy and reliability. Let me introduce to you their differences.
1. Service life
The usage rate of the refrigerated infrared thermal imaging camera is closely related to its own refrigerator. The working time of the refrigerator is directly related to the service life of the infrared thermal imaging camera. Relatively speaking, the service life of the uncooled infrared thermal imaging camera will be longer. However, due to the aging of components, the measurement accuracy will also decrease.
2. Volume
Since the cooled infrared thermal imaging camera requires a refrigerator to work together, the cooled infrared thermal imaging camera is larger than the uncooled type.
3. Price
Generally speaking, cooled infrared thermal imaging cameras are expensive, while uncooled ones are relatively cheap.
4.Power consumption
Cooled infrared thermal imaging cameras require a refrigerator to cool down when working, so they consume more energy and consume more power than uncooled infrared thermal imaging cameras.
5. Sensitivity, accuracy, error
When the refrigerated infrared thermal imager works, the refrigerator first works to reduce its own temperature, so that when detecting other objects, it has higher sensitivity, higher accuracy, smaller error, and wider detection temperature range. Uncooled infrared thermal imaging cameras are inferior in these aspects, especially the non-uniformity of the uncooled infrared focal plane array, which has a greater impact on measurement errors.
6.Reliability
Cooled infrared thermal imaging cameras have high accuracy, small errors and high sensitivity, making their detection results more reliable.
Sales Engineer:Grace Gao
Email:grace@bri-elec.com
WhatsApp:0086-199 2997 5286
