320×240长波非致冷微测辐射热计红外热象仪的研制  

DESIGN OF 320×240 LONG WAVE UNCOOLED MICROBOLOMETER INFRARED THERMAL CAMERA

作　　者：孔令彬[1] 易新建[1] 王典洪[2] 陈四海[1] 

机构地区：[1]华中科技大学光电子工程系 [2]中国地质大学机电工程系,武汉430074

出　　处：《光子学报》2002年第5期596-600,共5页Acta Photonica Sinica

基　　金：国家高技术 86 3计划和武汉市科技局 (编号 :991 0 0 2 0 37G)

摘　　要：介绍了基于微测辐射热计 3 2 0× 2 40长波非致冷红外热象仪的研制 ,详细说明了其电气系统的设计方法及技术关键 ,并对其光学系统进行了简要说明 .采用高象质的双反射光学系统以减少象差 ;红外探测器采用 3 2 0× 2 40长波非致冷集成微测辐射热计红外焦平面阵列( FPA) ;电气系统采用复杂可编程逻辑器件 ( CPLD)完成红外焦平面阵列的驱动 ,应用数字信号处理 ( DSP)技术实现红外焦平面阵列的非均匀性校正、图象增强及红外图象实时显示等 .This paper concerns the design of long wave uncooled infrared (IR) thermal camera based on uncooled focal plane array (UFPA).The optical system of this imaging system was briefly introduced while the design of the electrical system and the crux of the technique were described in detail.The IR sensor is a 320×240 LW IRCMOS uncooled integrated microbolometer UFPA.By making use of double reflected optical system,the image quality was improved and the aberration is reduced,and adopting new CPLD technique complete the driving of IRUFPA.In signal processing,the Nonuniformity Correction (NUC) of IRUFPA,image enhancement,contrast improvement and real time display IR were discussed.

关 键 词：微测辐射热计 焦平面阵列 非均匀性校正 红外热象仪 红外探测器 非致冷红外热成象 

分 类 号：TN215[电子电信—物理电子学] TH744.41[机械工程—光学工程]