【摘要】 采用两种不同的电阻温度系数的卡码合金丝材制成低温电阻应变计,用不锈钢试件,进行了从室温至液氮温度的热输出实验,得到了不同的热输出曲线,为研制低温应变计提供了依据。更多还原

【Abstract】 The experiments of the temperature-induced apparent strain for two kindsstrain gages,which are made by karma alloy filaments of different tem-perature factors have been run. Those strain gages are glued to the different strainless steel specimens,tests are carried out.From room temperature to the liquid nitrogen,Theresults of thermol-zero shift are obtained,it gaves the bases for the develop-ment of low temperature gages.更多还原