Evaluation method for aero-thermo-radiation effect of IR window

Wang Yahui; Wang Qiang; Zhang Bochuan; Zheng Wenjuan; Liu Yan; Xu Li

doi:10.3788/IRLA201645.0204001

Volume 45 Issue 2

Mar. 2016

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Article Navigation > Infrared and Laser Engineering > 2016 > 45(2): 204001-0204001(6)

Wang Yahui, Wang Qiang, Zhang Bochuan, Zheng Wenjuan, Liu Yan, Xu Li. Evaluation method for aero-thermo-radiation effect of IR window[J]. Infrared and Laser Engineering, 2016, 45(2): 204001-0204001(6). doi: 10.3788/IRLA201645.0204001

Citation:

Wang Yahui, Wang Qiang, Zhang Bochuan, Zheng Wenjuan, Liu Yan, Xu Li. Evaluation method for aero-thermo-radiation effect of IR window[J]. Infrared and Laser Engineering, 2016, 45(2): 204001-0204001(6). doi: 10.3788/IRLA201645.0204001

Evaluation method for aero-thermo-radiation effect of IR window

doi: 10.3788/IRLA201645.0204001

Wang Yahui^1,2,3,
Wang Qiang¹,
Zhang Bochuan^2,3,
Zheng Wenjuan^2,3,
Liu Yan^2,3,
Xu Li^2,3

1.
School of Energy and Power Engineering,Beihang University,Beijing 100191,China;
2.
Beijing Aerospace Automatic Control Institute,Beijing 100854,China;
3.
National Key Laboratory of Science and Technology on Aerospace Intelligent Control,Beijing 100854,China

Received Date: 2015-06-12
Rev Recd Date: 2015-07-19
Publish Date: 2016-02-25

Abstract

The windows of IR detection systems becomes the main factor of the aero-thermo-radiation effect, which reduces the performance of these IR systems, or even makes these systems fail. By analyzing thermal radiation propagating in IR windows, a participating medium, an evaluation method for aero-thermo-radiation effect of the non-isothermal IR windows was proposed, based on the experimental results of the isothermal state, include self-radiation and transmittance. Aim to an MWIR detection system of a hypersonic vehicle, aero-thermo-radiation effect of a sapphire IR window was evaluated in 3.7-4.8m. The results indicate that, as the sapphire IR window is exposed in high-temperature and high-speed airflow, the aero-thermo-radiation effect of the window intensifies as temperature rises rapidly, the transmittance drops about 10%, still bigger than 0.9, otherwise the self-radiation enhances 458 times approximately, equal to that of blackbody about 125℃. For sapphire windows in 100-350℃, which thickness are smaller than 20 mm, as thickness increases, the transmittance decreases, self-radiation increases, and total radiation behind sapphire windows is increased, of which the ratio of self-radiation increases. So, self-radiation would drive detector into saturation easily, of which the influence on the MWIR detection system is bigger than that of transmittance.
- aero-thermo-radiation effect,
- IR window,
- self-radiation,
- transmittance

References

[1]
[2]	Yin Xingliang. Principle of Aero-Optics[M]. Beijing:China Aerospace Press, 2003.(in Chinese)殷兴良. 气动光学原理[M]. 北京:中国宇航出版社, 2003.
[3]	Wang Yahui, Wang Qiang, Gao Lei, et al. Aero-thermo-radiation of a hypersonic vehicle[J]. Infrared and Laser Engineering, 2013, 42(6):1399-1403.(in Chinese)王亚辉, 王强, 高磊, 等. 高超声速飞行器气动热辐射特性[J]. 红外与激光工程, 2013, 42(6):1399-1403.
[4]
[5]
[6]	Chen Lianzhong, Zhang Jiaxiang, Fei Jindong. Experiment research on the aerodynamic heating effect on the infrared imaging[J]. Laser Infrared, 2009, 39(1):36-38.(in Chinese)陈连忠, 张嘉祥, 费锦东. 气动加热对红外成像的影响试验研究[J]. 激光与红外, 2009, 39(1):36-38.
[7]	Cheng Meisha, Chen Lianzhong. Aero-optics testing schemes for infrared radome[J]. Aerospace Materials Technology, 2010(3):73-75.(in Chinese)程梅莎, 陈连忠. 红外头罩气动光学试验[J]. 宇航材料工艺, 2010(3):73-75.
[8]
[9]	Yang Xingbang. XB high accuracy rocket sled test track[J]. Engineering Science, 2000, 2(10):99-104.(in Chinese)杨兴邦. XB高精度火箭橇试验滑轨[J]. 中国工程科学, 2000, 2(10):99-104.
[10]
[11]
[12]	Ma Yifei, Zhao Wenping. Effects of window radiation on infrared imaging detection[J]. Systems Engineering and Electronics, 2005, 27(32):427-430.(in Chinese). 马毅飞, 赵文平. 窗口辐射对红外成像探测影响的研究[J]. 系统工程与电子技术, 2005, 27(32):427-430.
[13]
[14]	Tan Heping, Xia Xinlin, Liu Linhua. Numberical Calculation on Infrared Radiative Properties and Transfer-Calculating Thermal Radiation[M]. Harbin:Harbin Institute of Technology Press, 2006.(in Chinese)谈和平, 夏新林, 刘林华. 红外辐射特性与传输的数值计算-计算热辐射学[M]. 哈尔滨:哈尔滨工业大学出版社, 2006.
[15]
[16]	Yin Xuemei, Liu Linhua. A survey of models for the calculation of radiation characteristics of high-temperature gases[J]. Journal of Engineering for Thermal Energy and Power, 2007, 22(5):473-479.(in Chinese)尹雪梅, 刘林华. 高温气体辐射特性计算模型[J]. 热能动力工程, 2007, 22(5):473-479.
[17]
[18]
[19]	Zhang Xingde, Liu Lin, Li Ronggang. Infrared optical window for airborne photoelectric equipments[J]. Infrared and Laser Engineering, 2010, 39(4):601-606.(in Chinese)张兴德, 刘琳, 李荣刚. 机载光电设备红外窗口技术[J]. 红外与激光工程, 2010, 39(4):601-606.
[20]	Liu Li, Meng Weihua, Pan Guoqing. Modeling and analysis of infrared radiation from the dome flying at supersonic speed[J]. Infrared and Laser Engineering, 2011, 40(7):1193-1198.(in Chinese)刘立, 孟卫华, 潘国庆. 超音速飞行环境中光学头罩热辐射建模与分析[J]. 红外与激光工程, 2011, 40(7):1193-1198.
[21]
[22]
[23]	Fan Zhigang, Yu Cuiping, Xiao Haosu, et al. Numerical simulation of thermal radiation effect about optical dome in aerodynamic thermal environment[J]. Journal of Applied Optics, 2012, 33(4):649-653.(in Chinese)范志刚, 于翠萍, 肖昊苏, 等. 气动光学头罩热辐射效应数值仿真研究[J]. 应用光学, 2012, 33(4):649-653.
[24]	Wang Yahui, Wang Qiang, Zhang Bochuan, et al. Experiment of the thermo-radiation characteristic of infrared window[J]. Infrared and Laser Engineering, 2014, 44(6):609-613.(in Chinese)王亚辉, 王强, 张伯川, 等. 高超声速飞行器红外头罩辐射传输特性试验[J]. 红外与激光工程, 2013, 44(6):609-613.
[25]
[26]	Yu Qizheng. Principle of Radiation Heat Transfer[M]. Harbin:Harbin Institute of Technology Press, 1999.(in Chinese)余其钲. 辐射换热[M]. 哈尔滨:哈尔滨工业大学出版社, 1999.

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Evaluation method for aero-thermo-radiation effect of IR window

1. School of Energy and Power Engineering,Beihang University,Beijing 100191,China;

2. Beijing Aerospace Automatic Control Institute,Beijing 100854,China;

3. National Key Laboratory of Science and Technology on Aerospace Intelligent Control,Beijing 100854,China

Received Date: 2015-06-12

Rev Recd Date: 2015-07-19

Publish Date: 2016-02-25

Key words:

Abstract: The windows of IR detection systems becomes the main factor of the aero-thermo-radiation effect, which reduces the performance of these IR systems, or even makes these systems fail. By analyzing thermal radiation propagating in IR windows, a participating medium, an evaluation method for aero-thermo-radiation effect of the non-isothermal IR windows was proposed, based on the experimental results of the isothermal state, include self-radiation and transmittance. Aim to an MWIR detection system of a hypersonic vehicle, aero-thermo-radiation effect of a sapphire IR window was evaluated in 3.7-4.8m. The results indicate that, as the sapphire IR window is exposed in high-temperature and high-speed airflow, the aero-thermo-radiation effect of the window intensifies as temperature rises rapidly, the transmittance drops about 10%, still bigger than 0.9, otherwise the self-radiation enhances 458 times approximately, equal to that of blackbody about 125℃. For sapphire windows in 100-350℃, which thickness are smaller than 20 mm, as thickness increases, the transmittance decreases, self-radiation increases, and total radiation behind sapphire windows is increased, of which the ratio of self-radiation increases. So, self-radiation would drive detector into saturation easily, of which the influence on the MWIR detection system is bigger than that of transmittance.

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Reference (26)

[1]
[2]	Yin Xingliang. Principle of Aero-Optics[M]. Beijing:China Aerospace Press, 2003.(in Chinese)殷兴良. 气动光学原理[M]. 北京:中国宇航出版社, 2003.
[3]	Wang Yahui, Wang Qiang, Gao Lei, et al. Aero-thermo-radiation of a hypersonic vehicle[J]. Infrared and Laser Engineering, 2013, 42(6):1399-1403.(in Chinese)王亚辉, 王强, 高磊, 等. 高超声速飞行器气动热辐射特性[J]. 红外与激光工程, 2013, 42(6):1399-1403.
[4]
[5]
[6]	Chen Lianzhong, Zhang Jiaxiang, Fei Jindong. Experiment research on the aerodynamic heating effect on the infrared imaging[J]. Laser Infrared, 2009, 39(1):36-38.(in Chinese)陈连忠, 张嘉祥, 费锦东. 气动加热对红外成像的影响试验研究[J]. 激光与红外, 2009, 39(1):36-38.
[7]	Cheng Meisha, Chen Lianzhong. Aero-optics testing schemes for infrared radome[J]. Aerospace Materials Technology, 2010(3):73-75.(in Chinese)程梅莎, 陈连忠. 红外头罩气动光学试验[J]. 宇航材料工艺, 2010(3):73-75.
[8]
[9]	Yang Xingbang. XB high accuracy rocket sled test track[J]. Engineering Science, 2000, 2(10):99-104.(in Chinese)杨兴邦. XB高精度火箭橇试验滑轨[J]. 中国工程科学, 2000, 2(10):99-104.
[10]
[11]
[12]	Ma Yifei, Zhao Wenping. Effects of window radiation on infrared imaging detection[J]. Systems Engineering and Electronics, 2005, 27(32):427-430.(in Chinese). 马毅飞, 赵文平. 窗口辐射对红外成像探测影响的研究[J]. 系统工程与电子技术, 2005, 27(32):427-430.
[13]
[14]	Tan Heping, Xia Xinlin, Liu Linhua. Numberical Calculation on Infrared Radiative Properties and Transfer-Calculating Thermal Radiation[M]. Harbin:Harbin Institute of Technology Press, 2006.(in Chinese)谈和平, 夏新林, 刘林华. 红外辐射特性与传输的数值计算-计算热辐射学[M]. 哈尔滨:哈尔滨工业大学出版社, 2006.
[15]
[16]	Yin Xuemei, Liu Linhua. A survey of models for the calculation of radiation characteristics of high-temperature gases[J]. Journal of Engineering for Thermal Energy and Power, 2007, 22(5):473-479.(in Chinese)尹雪梅, 刘林华. 高温气体辐射特性计算模型[J]. 热能动力工程, 2007, 22(5):473-479.
[17]
[18]
[19]	Zhang Xingde, Liu Lin, Li Ronggang. Infrared optical window for airborne photoelectric equipments[J]. Infrared and Laser Engineering, 2010, 39(4):601-606.(in Chinese)张兴德, 刘琳, 李荣刚. 机载光电设备红外窗口技术[J]. 红外与激光工程, 2010, 39(4):601-606.
[20]	Liu Li, Meng Weihua, Pan Guoqing. Modeling and analysis of infrared radiation from the dome flying at supersonic speed[J]. Infrared and Laser Engineering, 2011, 40(7):1193-1198.(in Chinese)刘立, 孟卫华, 潘国庆. 超音速飞行环境中光学头罩热辐射建模与分析[J]. 红外与激光工程, 2011, 40(7):1193-1198.
[21]
[22]
[23]	Fan Zhigang, Yu Cuiping, Xiao Haosu, et al. Numerical simulation of thermal radiation effect about optical dome in aerodynamic thermal environment[J]. Journal of Applied Optics, 2012, 33(4):649-653.(in Chinese)范志刚, 于翠萍, 肖昊苏, 等. 气动光学头罩热辐射效应数值仿真研究[J]. 应用光学, 2012, 33(4):649-653.
[24]	Wang Yahui, Wang Qiang, Zhang Bochuan, et al. Experiment of the thermo-radiation characteristic of infrared window[J]. Infrared and Laser Engineering, 2014, 44(6):609-613.(in Chinese)王亚辉, 王强, 张伯川, 等. 高超声速飞行器红外头罩辐射传输特性试验[J]. 红外与激光工程, 2013, 44(6):609-613.
[25]
[26]	Yu Qizheng. Principle of Radiation Heat Transfer[M]. Harbin:Harbin Institute of Technology Press, 1999.(in Chinese)余其钲. 辐射换热[M]. 哈尔滨:哈尔滨工业大学出版社, 1999.

Evaluation method for aero-thermo-radiation effect of IR window

doi: 10.3788/IRLA201645.0204001

Abstract

References

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