1.Question: What are the two main types of infrared thermal imaging detectors?
Answer: They are divided into cooled infrared detectors and uncooled infrared detectors according to the different cooling methods.
2.Question: What are the main sensitive materials for uncooled infrared detectors?
Answer: The main sensitive materials for uncooled infrared detectors are vanadium oxide (VOx) and amorphous silicon (a-Si).
3.Question: What are the components of a cooled infrared detector in infrared thermal imaging?
Answer: The components of a cooled infrared detector mainly include chips, refrigeration units, and dewars.
4.Question: What is the purpose of cooling the chip in a cooled infrared detector?
Answer: Cooled infrared detectors need to be used with refrigeration units, and the main function of the refrigeration unit is to reduce the noise of the infrared chip.
5.Question: What are the common problems with cooled infrared detectors?
Answer: Ghosting, pixel stability, and flash lines are common problems with cooled infrared detectors.
6.Question: What are the common cooling methods for cooled infrared detectors?
Answer: The common cooling methods are Stirling cooling and Joule-Thomson cooling.
7.Question: What is the power supply range for the standard cooling core of infrared thermal imaging?
Answer: The power supply range for the standard cooling core of infrared thermal imaging is 24V±4V.
8.Question: In the user menu of an infrared thermal imaging device, the menu item “SC” represents shutter correction operation, the “B1” item represents scene correction operation, and a uniform surface needs to be covered in front of the lens. What does “NUC” stand for?
Answer: NUC stands for Non-uniformity correction, which is generally used for cameras with continuous zoom lenses.
9.Question: In order to achieve high frame rates, what mode is recommended for cooled infrared detectors?
Answer: The IWR mode is recommended for monitoring using cooled infrared detectors.