SU Wen-chao 1 ,PENG Xin 2 ,LIU Chun-yu 1 ,MA Hui 1 ,ZHANG Zhe-heng 1 ,CHU Shao-bin 1 ,WU Yun 1.Method of Infrared Temperature Measurement of High Temperature Components in Gas Environment[J].航空发动机,2023,49(1):163-168
Method of Infrared Temperature Measurement of High Temperature Components in Gas Environment
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Key Words:high temperature components  temperature correction  infrared thermal imager  gas environment  afterburner  aeroengine
Author NameAffiliationE-mail
SU Wen-chao 1 ,PENG Xin 2 ,LIU Chun-yu 1 ,MA Hui 1 ,ZHANG Zhe-heng 1 ,CHU Shao-bin 1 ,WU Yun 1 1.AECC Shenyang Engine Research InstituteShenyang 110015China
2.Second Military Representative Office of Air Force Equipment Department Stationed in Shenyang Area, Shenyang 110043,China 
851734539@qq.com 
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Abstract:To tackle the low accuracy problem of temperature field measurement for high temperature components in aeroengine after? burner, an infrared temperature measurement test method for high temperature components in gas environment was proposed. Infrared ther? mal imager equipped with 3.97 to 4.01 μm narrowband filter and K-type thermocouples were used to measure the surface temperature dis? tribution of high temperature components simultaneously under 8 different conditions in the gas environment. The measurement results of the infrared thermal imager were compared with that of the thermocouples, and comprehensive correction coefficients for the infrared ther? mal imager were derived according to the results of the thermocouples. The results show that the coefficients can effectively correct the mea? surement errors caused by surface emissivity, high temperature gas, sapphire glass window, and ambient atmosphere. After the correction, the deviation between the results of the infrared thermal imager and the thermocouples can be controlled within 1.5%. The correction meth? od provides a valuable reference for subsequent measurement of temperature distribution of high temperature components in aeroengine af? terburner.
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