应力应变电测技术中影响测量误差的主要因素分析

Study of the Error Analysis and the Determ Ined Method in the Electrom Etric Strain Test

分析了电测试验中电阻应变片及导线长度、温度的不同,对测试结果所产生的影响,并通过理论分析,计算及实际结构的测试,得出了应变电测试验中减小误差的方法。

The influence on the result of electrom etric, cased by the length of the conducting wire, the temperature as the variations of the pattern of the composed bridges is analysed. The method to reduce the error in the electrom ctric strain test is obtained through the theoretical analysis, calculations and the concrete structures.