【摘要】 通过对应变电桥的理论分析和对ＯＰ０７，７６５０芯片的性能研究，介绍了如何把第四代高性能运放７６５０应用到材料力学微应变检测中的电路原理及具体实施方法更多还原

【Abstract】 On the basis of a theoretical analysis of the electrical bridge in a strainometer and a study of the properties of chips OP07 and 7650,the paper introduces how the fourth generation high quality operation amplifier 7650 is applied to the principle of an electric circuit for the micro strain measurement in material mechanics,and the way of of its realization.更多还原