计量学报2017，Vol.38Issue(2)：129-134,6.DOI:10.3969/j.issn.1000-1158.2017.02.01
H500型红外遥感定标高精度真空黑体辐射源的研制
Development of H500 Type High Precision Vacuum Blackbody Used as a Calibration Standard for Infrared Remote Sensing
摘要
Abstract
A high precision vacuum blackbody(H500 type)with the temperature range between-93 ℃ to 220 ℃ is developed at the National Institute Metrology of China.The performances are tested under the vacuum and low background condition (liquid-nitrogen-cooled shroud).The major technical parameters of the blackbody, such as the emissivity and uniformity are measured at room temperature and atmospheric environment.When the heating rate is 1 ℃/min, the time is shorter than 50 minutes and the temperature stability is better than 0.01 ℃ during 10 minutes.The emissivity of the blackbody at 20 ℃, 30 ℃ and 50 ℃ are 0.9965, 0.9966 and 0.9963, respectively.The temperature uniformity at the bottom of the blackbody cavity is better than 0.03 ℃.The expanded uncertainty is better than 0.1 ℃(k=2) over the entire temperature range.关键词
计量学/真空黑体辐射源/红外遥感/黑体空腔发射率Key words
metrology/vacuum blackbody source/infrared remote sensing/emissivity of blackbody cavity分类
通用工业技术引用本文复制引用
龚律宇,郝小鹏,孙建平,宋健,原遵东,顾明剑,丁雷..H500型红外遥感定标高精度真空黑体辐射源的研制[J].计量学报,2017,38(2):129-134,6.基金项目
国家863计划(2015AA123701) （2015AA123701）
国家自然科学基金(11475162) （11475162）
