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在航空发动机整机试验和部件试验中,广泛应用镍铬—镍硅型热电偶材料来测量温度,以整机试验气流温度测量为例,采用镍铬—镍硅型热电偶材料多达50％至80％。通过对试验数据的分析,发现偶丝材料的精度直接影响到试验结果。一机部上海电器科学研究所1979年研制成的高精度镍铬—镍硅热电偶材料,引起国内不少科研单位、大专院校和生产部门的重视,并逐步推广使用。
Ni-Cr-Ni-Si thermocouple materials are widely used in aircraft engine test and component testing. Taking the temperature measurement of the whole test airflow as an example, the Ni-Cr-Ni-Si thermocouple materials are used up to 50% To 80%. Through the analysis of the experimental data, it was found that the accuracy of the even wire material directly affects the test results. A machine department Shanghai Institute of Electrical Science and Technology in 1979 developed a high-precision nickel-chromium-nickel-silicon thermocouple material, causing many domestic research institutes, tertiary institutions and production departments, and gradually promote the use of.