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本文主要论述利用微型计算机控制电阻应变仪进行多点测量、多点数据处理的方法。该方法把微机所采集的各点应变,按照应变片的实际贴法(单向应力状态、二向应力状态、45°、60°、90°等应变贴花)换算成相应的应力,并能对桥路不平衡的初始值进行处理,从而可大大加强电阻应变仪的功能。
This article mainly discusses the use of microcomputer control resistance strain gauge multi-point measurement, multi-point data processing methods. In this method, the strain collected at microcomputer is converted into the corresponding stress according to the actual method of strain gauge (unidirectional stress state, two-state stress state, strain applique at 45 °, 60 °, 90 °) Bridge imbalance of the initial value for processing, which can greatly enhance the resistance strain gauge function.