航空发动机主燃烧室高温测试技术

依据航空发动机主燃烧室结构及RR等国外发动机公司的研制经验，阐述了航空发动机主燃烧室试验器应当采用的合理布局。结合各类主燃烧室试验器的结构，以测量燃烧室出口温度场为目的，介绍了4种可用于燃烧室试验器温度场测量的技术，同时给出了1种燃气分析燃烧温度通用计算方法。对4种高温测试技术在不同类型燃烧试验器上的应用特点进行了比较。指出燃气分析方法测量燃烧室出口温度场具有可测量高温、数据精度高、高压环境性能可靠、在使用寿命周期内成本低的优势，是目前温度场测试的首选。

High Temperature Measurement Technology for Main Combustion Chamber of Aeroengine

Based on main combustion chamber structure of aeroengine and experience from predominate engine company such as Rolls-Royce, the reasonable layout of main combustion chamber rig of aeroengine was elaborated. For the purpose of measuring the outlet temperature field of main combustion chamber, combined with the structure of main combustion chamber, four temperature measurementtechnologies for combustion rig were introduced and general calculating method on gas analysis was presented. The characteristics of four temperature measurement technologies applied to different combustion rigs were compared. The result follows that gas analysis is regarded as the best technology for measuring combustor temperature field because of its high temperature measurement ability, high precision, good reliability in high pressure environment and low life cycle cost.Key words: combustion rig; temperature measurement