航空发动机涡轮叶片接触式测温技术应用进展

航空发动机涡轮叶片测温技术能够揭示涡轮叶片的温度分布情况，对其开展性能评估、失效分析和优化设计具有重要意义。涡轮进口温度的不断提升对应用于航空发动机涡轮叶片的测温技术提出了更高的要求。现有的航空发动机涡轮叶片接触式测温技术可采集叶片表面温度和近表面气流温度，本文主要介绍了三种应用于涡轮叶片的接触式测温技术，包括薄膜热电偶、测温晶体和示温漆，简要说明了三种测温技术的工作原理，归纳了国内外应用现状，总结了各自的优势与不足，并对其发展方向进行了展望。

Advances in application of contact temperature measurement technology for aeroengine blade

Aeroengine is a concentrated expression of the national scientific and technological level, industrial design and manufacturing power. High Mach number, high thrust-to-weight ratio and high turbine inlet temperature are the main development directions. The temperature distribution of turbine blades can be revealed through the measurement which is valuable for performance evaluation, failure analysis and turbine blade optimization design. The continuously increasing turbine inlet temperature put forward a higher requirement to the temperature measurement technique in aeroengine. This article primarily introduces three types of contact temperature measurement methods for turbine blade, including thin film thermocouple, crystal temperature sensor and temperature sensitive paint, illustrates the working principles briefly, summarizes the application status at home and abroad, concludes the benefits and drawbacks, and forecasts the development direction of the three temperature measurement methods.