摘要
为了准确评估红外材料和涂层的隐身性能,研制了一套IRS400型材料发射率测试装置,主要用于温度范围(50~400)℃,光谱范围(3~5)μm和(8~12)μm的固体不透明材料和涂层定向发射率测量。给出IRS400型材料发射率测试装置的技术指标,阐述其工作原理,IRS400的光学系统采用全反射式设计,探测器选用钽酸锂热释电探测器,采用"50℃~1 000℃黑体辐射源标准装置"对黑体发射率εB(λ1,λ2)进行标定。通过解决标定和环境温度补偿等关键技术,确保发射率测量不确定度小于2%(k=2)。
In order to accurately evaluate the stealth performance of infrared materials and coat‐ing ,the IRS400 type material emissivity measurement equipment was developed .It is mainly used in the temperature range of 50 ℃ ~400 ℃ ,spectrum range of 3 μm^5 μm and 8 μm^12 μm directional measurement for the emissivity of solid opaque material and coating sample . The importance of the material emissivity measurement for infrared stealth technology was in‐troduced ,the IRS400 type emissivity measurement equipment was described ,including the technology performance and working principle .The IRS400 optic system adopted total reflec‐tion design ,the detector selected the LiTaO3 pyroelectric detector ,and the 50 ℃ ~1 000 ℃black body radiation source standard device was utilized to calibrate the black body emissivityεB (λ1 ,λ2 ) .By solving the key technology of calibration and environmental temperature compen‐sation ,the emissivity measurement uncertainty can be ensured less than 2% .
出处
《应用光学》
CAS
CSCD
北大核心
2015年第2期272-276,共5页
Journal of Applied Optics
关键词
红外隐身
材料发射率
测试方法
测试装备
infrared stealth
material emissivity
measurement method
test equipment
