基于蒙皮红外辐射测温方法研究
发布时间：2018-10-25 19:05
【摘要】：随着红外技术的发展,红外辐射测温在各大领域中的应用越来越广泛。蒙皮温度对蒙皮红外辐射特性影响很大,本文着重研究了从红外热像仪的辐射标定、辐射传输模型的建立、蒙皮发射率的测量到实验室环境下辐射测温一套较为完整的测量方法。为蒙皮测温提供一种理论可行的方法,丰富蒙皮测温理论体系。第1章,主要阐述了蒙皮红外辐射测温的研究背景、意义、现状和技术路线等。第2章,主要研究了基于面源黑体的红外热像仪辐射标定。在红外热像仪辐射标定中,普遍采用精度不太理想的最小二乘法。为了考虑因热像仪系统随机误差、环境波动、黑体温度不稳定等对标定结果的影响和提高标定模型的精度,建立了基于加权最小二乘的红外热像仪标定模型,建立了黑体亮度和热像仪输出灰度的响应关系。第3章,主要研究了蒙皮红外辐射在大气中的传输衰减。红外辐射大气透射率对目标辐射的测量精度影响很大。分析了红外辐射在大气中的传输衰减,建立了大气透射率的求解模型。利用编制的大气透射率计算程序研究了气象条件、辐射路径几何参数对大气透射率的影响,最后对计算结果作了进一步的分析。计算结果对求解大气透射率和研究气象条件、路径几何参数对大气透射率的影响具有一定的指导意义。第4章,主要研究了蒙皮发射率的测量。本文利用红外热像仪,基于红外热图像对蒙皮发射率进行了测量,建立了蒙皮温度及其对应发射率的函数变化关系。第5章,主要研究了蒙皮红外辐射的测温方法。基于红外热像仪的蒙皮测温精度依赖于大气温湿度、大气透射率等参数的测量精度。为了减少这种依赖性和提高测量精度,提出了一种基于红外热图像灰度修正的蒙皮辐射测温方法。并建立了基于实时校标的蒙皮辐射测温模型。在实验室环境下,分别基于红外热像灰度修正辐射测温法和实时校标测温法对蒙皮进行了测量。结果表明,在实验室环境下,两者的平均测量误差均低于3.2%。
[Abstract]:With the development of infrared technology, infrared radiation temperature measurement is more and more widely used in various fields. The skin temperature has a great influence on the infrared radiation characteristics of the skin. In this paper, the calibration of infrared thermal imager and the establishment of radiation transfer model are studied. The measurement of skin emissivity is a complete method of measuring radiation temperature in laboratory environment. It provides a theoretical and feasible method for skin temperature measurement, and enriches the theoretical system of skin temperature measurement. In chapter 1, the research background, significance, current situation and technical route of skin infrared radiation temperature measurement are described. In chapter 2, the radiation calibration of infrared thermal imager based on non-point black body is studied. The least square method with low precision is widely used in the infrared thermal image calibration. In order to consider the effect of random error, environmental fluctuation and blackbody temperature instability on the calibration results and improve the accuracy of calibration model, a calibration model of infrared thermal imager based on weighted least squares was established. The response relationship between the blackbody brightness and the output gray scale of the thermal imager is established. In chapter 3, the attenuation of infrared radiation in the atmosphere is studied. The atmospheric transmittance of infrared radiation has great influence on the measurement accuracy of target radiation. The transmission attenuation of infrared radiation in atmosphere is analyzed and the model of atmospheric transmittance is established. The effects of meteorological conditions and geometric parameters of radiation path on atmospheric transmittance are studied by using the program for calculating atmospheric transmittance. Finally, the calculated results are further analyzed. The calculated results have a certain guiding significance for solving atmospheric transmittance and studying the influence of path geometry parameters on atmospheric transmittance. In chapter 4, the measurement of skin emissivity is studied. In this paper, the emissivity of the skin is measured based on the infrared thermal image, and the functional relationship between the skin temperature and its corresponding emissivity is established. In chapter 5, the method of measuring infrared radiation of skin is studied. The accuracy of skin temperature measurement based on infrared thermal imager depends on the measurement accuracy of atmospheric temperature and humidity, atmospheric transmittance and other parameters. In order to reduce this dependence and improve the measurement accuracy, a skin radiation temperature measurement method based on gray correction of infrared thermal image is proposed. A model of radiation temperature measurement based on real-time calibration was established. In the laboratory environment, the skin was measured based on infrared thermal image gray modified radiation temperature measurement method and real time calibration temperature measurement method. The results show that the average measurement errors are lower than 3.2 in laboratory environment.
【学位授予单位】：沈阳大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN219
本文编号：2294558
[Abstract]:With the development of infrared technology, infrared radiation temperature measurement is more and more widely used in various fields. The skin temperature has a great influence on the infrared radiation characteristics of the skin. In this paper, the calibration of infrared thermal imager and the establishment of radiation transfer model are studied. The measurement of skin emissivity is a complete method of measuring radiation temperature in laboratory environment. It provides a theoretical and feasible method for skin temperature measurement, and enriches the theoretical system of skin temperature measurement. In chapter 1, the research background, significance, current situation and technical route of skin infrared radiation temperature measurement are described. In chapter 2, the radiation calibration of infrared thermal imager based on non-point black body is studied. The least square method with low precision is widely used in the infrared thermal image calibration. In order to consider the effect of random error, environmental fluctuation and blackbody temperature instability on the calibration results and improve the accuracy of calibration model, a calibration model of infrared thermal imager based on weighted least squares was established. The response relationship between the blackbody brightness and the output gray scale of the thermal imager is established. In chapter 3, the attenuation of infrared radiation in the atmosphere is studied. The atmospheric transmittance of infrared radiation has great influence on the measurement accuracy of target radiation. The transmission attenuation of infrared radiation in atmosphere is analyzed and the model of atmospheric transmittance is established. The effects of meteorological conditions and geometric parameters of radiation path on atmospheric transmittance are studied by using the program for calculating atmospheric transmittance. Finally, the calculated results are further analyzed. The calculated results have a certain guiding significance for solving atmospheric transmittance and studying the influence of path geometry parameters on atmospheric transmittance. In chapter 4, the measurement of skin emissivity is studied. In this paper, the emissivity of the skin is measured based on the infrared thermal image, and the functional relationship between the skin temperature and its corresponding emissivity is established. In chapter 5, the method of measuring infrared radiation of skin is studied. The accuracy of skin temperature measurement based on infrared thermal imager depends on the measurement accuracy of atmospheric temperature and humidity, atmospheric transmittance and other parameters. In order to reduce this dependence and improve the measurement accuracy, a skin radiation temperature measurement method based on gray correction of infrared thermal image is proposed. A model of radiation temperature measurement based on real-time calibration was established. In the laboratory environment, the skin was measured based on infrared thermal image gray modified radiation temperature measurement method and real time calibration temperature measurement method. The results show that the average measurement errors are lower than 3.2 in laboratory environment.
【学位授予单位】：沈阳大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN219
【参考文献】
相关期刊论文 前10条
1 赵稼祥;海湾战争与隐身材料[J];兵器材料科学与工程;1992年10期
2 郭帮辉;黄剑波;王志;吴宏圣;;目标距离和视场角变化对红外热像仪测温精度影响的理论分析[J];长春理工大学学报(自然科学版);2011年01期
3 刘慧开,杨立;太阳辐射对红外热像仪测温误差的影响[J];红外技术;2002年01期
4 褚载祥,陈守仁,孙毓星;材料发射率测量技术[J];红外研究(A辑);1986年03期
5 杨词银;张建萍;曹立华;;基于实时标校的目标红外辐射测量新方法[J];红外与毫米波学报;2011年03期
6 付伟;红外隐身原理及其应用技术[J];红外与激光工程;2002年01期
7 王威,李进杰,顾德均,高伟;红外辐射的气候环境传输特性分析[J];激光与红外;2000年05期
8 孙晓刚;李云红;;红外热像仪测温技术发展综述[J];激光与红外;2008年02期
9 樊宏杰;陈前荣;杨淼淼;刘连伟;许振领;王敏;;不同气象条件下飞机红外辐射等效折算[J];红外技术;2012年11期
10 冯云松;金伟;路远;凌永顺;;红外探测系统对某型隐身飞机的作用距离分析[J];火力与指挥控制;2014年01期
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