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以某航空发动机推力销载荷测量项目为背景,介绍了基于RTD的推力销表面温度测量方法。通过温度试验获得温度对应变桥输出的影响曲线,然后结合发动机车台试验对推力销温度进行了实时测量。根据推力销环境温度试验和载荷标定试验,得到推力销测量载荷的温度修正,表明温度对测量结果的影响。
Taking aeroengine thrust pin load measurement project as a background, this paper introduced a method of RTD based thrust pin surface temperature measurement. Through the temperature test, the effect curve of the temperature on the output of the strain bridge is obtained, and then the temperature of the thrust pin is measured in real time with the engine test. According to the thrust pin ambient temperature test and load calibration test, the temperature correction of the thrust pin measuring load is obtained, indicating the influence of temperature on the measurement result.