摘 要：温度是发动机工作过程中的重要参数，通过温度测试可以充分地掌握发动机内部和外部的工作状况，为进一步调试、改进设计提供直接的技术支持。本文简要介绍了热电偶、热电阻的测温原理，以某涡桨发动机试验的温度测试需求为例，设计并搭建了适应该发动机试验的温度测试系统，详细论述了温度测试系统的工作流程，并给出了热电阻和热电偶测温系统的误差分析。该系统目前工作稳定可靠，满足精度要求，正应用于该型发动机的各项试验中。
关键词：航空发动机；温度测试；误差分析
中图分类号：TH811 文献标识码：A 文章编号：2096-4706（2019）12-0033-03
The Design of Temperature Measurement System for a Turboprop Aero Engine Test
HUANG Mengwei，ZHAN Lulu
（AECC Hunan Aviation Powerplant Research Institute，Zhuzhou 412002，China）
Abstract：Temperature is a key element of aero engine testing，the inner and outer performance of an aero engine are reflectedthrough temperature measurement，and it is also of great value in providing technical support for further adjustment and improvement.This paper briefly introduced the temperature measurement principle of thermocouple and thermal resistance，designed the structure oftemperature measurement system according to the test requirements of a turboprop engine’s test bench，and explained the workingprocess of the system in details. The error analysis of thermocouple and thermoresistor temperature measurement system is also given. Thesystem has been running stably and can meet the precision requirements，and reliably in all kinds of tests of this turboprop aero engine.
Keywords：aero engine；temperature measurement；error analysis
参考文献：
[1] 徐峰. 温度测量 [Z]. 湖南：航空航天工业部608 研究所，1992.
[2] 喻秉文. 热电偶\ 铂热电阻应用手册 [Z]. 重庆：机械工业部重庆仪表材料研究所，1996.
作者简介：黄梦薇（1988-），女，汉族，湖南湘潭人，工程师，硕士研究生，研究方向：发动机测试。