航空发动机高温壁面热电偶测温技术应用

高温壁面温度的准确测量是航空发动机研制过程中的重要环节。热电偶是航空发动机高温壁面测温领域中使用最为广泛的温度传感器。提高热电偶的测温极限、测温精确度以及测温可靠性，是航空发动机试验和测试领域迫切需要攻克和解决的技术难题。本文从铠装热电偶测温技术、薄膜热电偶测温技术和热电偶壁面测温技术修正3个方面，对航空发动机高温壁面热电偶测温技术的研究进展进行了综述。建立热电偶高温壁面测温修正方法将是今后航空发动机高温壁面测温领域需要重点关注的研究方向。

Thermocouple Measurement Technology for High Temperature Wall in Aero-engine

Accurate temperature measurements for the high temperature wall are an important step in the aero engine research and development. Thermocouple is the most widely used temperature sensor in the high temperature wall measurement field of aero engine.Improving the temperature measurement limit, temperature measurement accuracy and temperature measurement reliability of the thermocouple is an urgent technical problem in the experimental test field of aero engine.In this paper, the research progress of the thermocouple temperature measurement technology for aero engine high temperature wall is summarized from three aspects of sheathed thermocouple, thin film thermocouple and wall temperature correction for thermocouple measurement.The correction method for thermocouple high temperature wall measurement is an important research direction of the aero engine experiment and measurement field in the future.