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针对基于温度应变补偿的结构电阻应变测试技术,分析了结构温度应变的产生原理与结构温度应变的补偿原理,辨析了结构温度应变与补偿块温度应变二者的相互关联与差异.在此基础上,指出了基于温度应变补偿模式的结构电阻应变测试技术的错误在于:概念上混淆了结构的温度应变与补偿块的温度应变,导致了结构温度应变的错误补偿.同时,给出了正确实现工程结构应变测试的环境条件,以最大限度地保证了结构应变测试数据的客观性与可靠性.
Aiming at the structure resistance strain measurement technology based on temperature strain compensation, the principle of structure temperature strain and the compensation principle of structure temperature strain are analyzed, and the correlation and difference between structure temperature strain and temperature and strain of compensation block are analyzed. , Pointed out that the error of the structure resistance strain measurement based on the temperature and strain compensation mode lies in the fact that the temperature and strain of the structure and the temperature strain of the compensation block are conceptually confused and lead to the wrong compensation of the temperature and strain of the structure.At the same time, Structural strain test of the environmental conditions in order to maximize the structural strain test data to ensure the objectivity and reliability.