The method of circuit bridge for measuring resistance is one of the very important contents in experiment physics teaching. Taking DC bridge for example, by using LabVIEW through programming, CTL interface beautification, local variables and Property Node setting, the experiment of measuring resistance by DC bridge is simulated. In the process of development, the galvanometer current formula in the Wheatstone bridge and Kelvin bridge is unified, the calculation is carried out with matlab. The system realizes the whole process of experiment operation, processing and simulation of experimental data and expression of complete experimental results in the same simulation software.

电桥测量电阻的方法是实验物理教学中非常重要的内容之一。以直流电桥为例，利用LabVIEW通过编程、CTL界面美化、局部变量和属性节点设置，对直流电桥测量电阻的实验进行了仿真。在开发过程中，统一了惠斯通电桥和开尔文电桥中的检流计电流公式，用matlab进行计算。该系统在同一个仿真软件中实现了实验操作、实验数据的处理和仿真以及完整的实验结果表达的全过程。