红外测温中大气透过率修正方法
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- 英文论文题名：The correction method for atmospheric transmission coefficients on temperature measurement of infrared thermal imager
- 论文作者：金方圆 ; 郭媛媛 ; 王运鹰 ; 齐异 ; 李桂娟
- 英文论文作者：JIN Fang-yuan ; GUO Yuan-yuan ; WANG Yun-ying ; QI Yi ; Li Gui-juan ; Dalian Test and Control Technology Institute
- 年：2016
- 作者机构：大连测控技术研究所;
- 论文关键词：红外热像仪 ; 外场测温 ; 大气透过率 ; 现场标定
- 英文论文关键词：infrared thermal imager ; temperature measurement in field ; the atmospheric transmission coefficient ; scene calibration
- 会议召开时间：2016-10-25
- 会议录名称：2016年中国造船工程学会水中目标特性学组学术交流会论文集
- 语种：中文
- 分类号：TN219
- 学会代码：SXJS
- 会议名称：2016年中国造船工程学会水中目标特性学组学术交流会
- 会议地点：中国辽宁大连
- 主办单位：中国船舶重工集团公司第七六0研究所水中测控技术重点实验室
- 学会名称：《声学技术》编辑部
- 页数：4
- 文件大小：493k
- 原文格式：D
- 会议级别：全国
摘要
在外场测试任务中,大气透过率对红外热像仪的测温精度影响较大,为降低其影响,现场标定法是最简单有效的方法,其处理透过率方法包括直接标定法和反推计算法。用标准黑体的设置温度直接标定了典型环境下大气透过率修正系数,实验表明,当黑体温度在20℃~200℃范围内变化时,可使用同一个大气透过率修正系数进行红外测温,修正后测温精度在1.75%以内;使用红外测温原理公式反推计算的方法,得到该方法下的大气透过率修正系数,修正后红外测温精度在1.5%以内。
The atmospheric transmission coefficient influence the precision of temperature measurement significantly in fields by infrared thermal imager, in order to reduce the influence, the scene calibration is the simplest and most effective method. Direct calibration method and extrapolation method are often used to deal with the atmospheric transmission coefficient in scene calibration. The setting temperature of the standard blackbody is used in direct calibration method to correct the calibration coefficient of atmospheric transmission in typical environment. The experiment results show that when the temperature of blackbody ranges from 20℃ to 200℃, the same atmospheric transmission calibration coefficient can be used to measure the temperature by infrared thermal imager, the precision can reach up to 1.75% after correction. Based on the formula of temperature measurement using infrared imager, extrapolation method is used to obtain the real atmospheric transmission coefficient, the precision can reach up to 1.75% after correction.
The atmospheric transmission coefficient influence the precision of temperature measurement significantly in fields by infrared thermal imager, in order to reduce the influence, the scene calibration is the simplest and most effective method. Direct calibration method and extrapolation method are often used to deal with the atmospheric transmission coefficient in scene calibration. The setting temperature of the standard blackbody is used in direct calibration method to correct the calibration coefficient of atmospheric transmission in typical environment. The experiment results show that when the temperature of blackbody ranges from 20℃ to 200℃, the same atmospheric transmission calibration coefficient can be used to measure the temperature by infrared thermal imager, the precision can reach up to 1.75% after correction. Based on the formula of temperature measurement using infrared imager, extrapolation method is used to obtain the real atmospheric transmission coefficient, the precision can reach up to 1.75% after correction.
引文
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[9]魏合理,陈秀红,詹杰,等.红外辐射测量的大气修正[J].大气与环境光学学报,2007,2(6):472-478.WEI Heli,CHEN Xiuhong,ZHAN Jie,et al.Atmospheric correction in the measurement of infrared radiance[J].Journal of Atmospheric and Environment Optics,2007,2(6):472-478.
[2]张晓龙,刘英,王健,等.不同非均匀性校正温度的红外测温技术[J].中国光学,2014,7(1):150-155.ZHANG Xiaolong,LIU Ying,WANG Jian,et al.Infrared thermometry technology with different nonuniformity correction temperature[J].Chinese Optics,2014,7(1):150-155.
[3]陆子凤,潘玉龙,王学进,等.目标到测试系统距离对红外测温精度的影响[J].红外技术,2008,30(5):271-278.LU Zifeng,PAN Yulong,WANG Xuejin,et al.Influence of object-system distance on accuracy of temperature measurement with IR system[J].Infrared Technology,2008,30(5):271-278.
[4]孙志远,王晶,乔彦峰.环境对中波红外探测器测温精度的影响[J].中国光学与应用光学,2010,3(6):659-664.SUN Zhiyuan,WANG Jing,QIAo Yanfeng.Influence of environment on temperature measurement precision based on middle-wave IRFPA[J].Chinese Journal of Optics and Applied Optics,2010,3(6):659-664.
[5]杨桢,杨士成,杨立.非朗伯体红外测温计算研究[J].光谱学与光谱分析,2010,30(8):2093-2097.YANG Zhen,ZHANg Shicheng,YANg Li.Calculation of infrared temperature measurement on non-lambertian objects[J].Spectroscopy and Spectral Analysis,2010,30(8):2093-2097.
[6]杨立,杨桢.红外热成像测温原理与技术[M].科学出版社,北京,2012.
[7]杨立.红外热像仪测温计算与误差分析[J].红外技术,1999,21(4):20-24.YANG Li.Calculation and error analysis of temperature measurement using thermal imager[J].Infrared Technology,1999,21(4):20-24.
[8]李云红,张龙,王延年.红外热像仪外场测温的大气透过率二次标定[J].光学精密工程,2010,18(10):2143-2149.LI Yunhong,ZHANG Long,WANg Yannian.Second calibration of atmospheric transmission coefficients on temperature measurement of infrared thermal imager in fields[J].Optics and Precision Engineering,2010,18(10):2143-2149.
[9]魏合理,陈秀红,詹杰,等.红外辐射测量的大气修正[J].大气与环境光学学报,2007,2(6):472-478.WEI Heli,CHEN Xiuhong,ZHAN Jie,et al.Atmospheric correction in the measurement of infrared radiance[J].Journal of Atmospheric and Environment Optics,2007,2(6):472-478.