论文部分内容阅读
热成象系统采用致冷的红外探测器已被确定无疑。一般来说,热成象系统在接通致冷器后,30秒钟就进入工作状态。然而新型的热寻的导弹和激光制导导弹必须在仅仅几秒钟或更短的时间内就进入工作状态。每种用途可以要求红外探测器不同的工作温度。有些型号需要焦尔-汤姆逊(J-T)式致冷,而另一些型号可以在热电温度下工作。本文介绍快速致冷红外探测器的设计根据。列举采用焦尔-汤姆逊(J-T)致冷器的一些设计实例,并给出了J-T致冷器的性能和一种采用二级热电致冷器的探测器的情况。
The thermal imaging system uses a cooled infrared detector has been identified. In general, thermal imaging system in the cooler, 30 seconds into the working state. However, the new heat-seeking missiles and laser-guided missiles have to be put into operation in only a few seconds or less. Each application may require different operating temperatures of the infrared detector. Some models require J-T cooling, while others can operate at thermoelectric temperatures. This article describes the design basis of a fast-cooling infrared detector. Some examples of designs using J-T coolers are listed and the performance of the J-T coolers and a detector using a two-stage thermoelectric coolers are given.