摘要
非致冷红外焦平面基准温度的稳定性和均匀性直接决定了其应用系统的性能。分析了基于PID算法的温度控制原理,在此理论基础上,设计了针对非致冷红外焦平面的高精度微型温度控制系统,该系统利用专用控制芯片ADN8830对TEC进行PID闭环自动控制,温度恒定范围在0～45℃时,实现了温度稳定度±0.01℃的性能指标。该系统还具有高精度、小型化、低噪声、快速稳定等优点,为提高红外焦平面系统温度稳定性、迅速达到稳定工作状态提供了有益的参考。
Temperature stability and uniformity of uncooled Infrared Focal Plane play an important role in its application. In this paper, temperature control principle based on PID algorithm was discussed. On the basis of this theory, a micro precision temperature control system for uncooled Infrared Focal Plane was designed, TEC was controlled automatically using closed-loop PID by ADN8830, the temperature range of 0-45℃ and the temperature stability within ±0.01℃ is realized. The system also has characteristic of high precision, compact size, low noise, fast stabilizing, etc. It provides a useful reference for improving temperature stability of uncooled infrared focal plane system and reaching a stable state fast.
出处
《红外技术》
CSCD
北大核心
2009年第3期144-147,共4页
Infrared Technology
