典型测试技术实验的虚拟课堂实验设计

On the Virtual Classroom Experiment Design of Typical Testing Technology Experiment

探讨了虚拟仪器技术在“测试技术”课程相关知识点中的应用,在理论教学和实践教学的基础上,建立了与理论教学相辅相成的仿真实验目标,设计了课程中信号及其频谱、电桥的仿真实验方案及仿真实验程序,实现了不同信号的频谱分析、不同组桥类型的电桥输出特性等仿真实验。结果表明:电桥特性的仿真程序可以分别进行单臂电桥、半桥、全桥的仿真实验;周期信号频谱分析的仿真程序可以直观地给出周期信号的时域和频域波形。研究成果为仿真实验在“测试技术”课堂教学中的应用提供了解决方案。

This paper discusses the application of virtual instrument technology in the knowledge points of Testing Technology course.Based on the theory teaching and practice teaching,this paper establishes the simulation experiment goal which complements theory teaching.The simulation experiment scheme and program of signal and its spectrum and bridge is designed,and the simulation experiments of different signal spectrum analysis and different bridge output characteristics of different sets of bridge types are realized.The results show that the simulation program of bridge characteristics can be used to simulate the single-arm bridge,half bridge and full bridge respectively;the simulation program of periodic signal spectrum analysis can intuitively give the time domain and frequency domain wave-forms of the periodic signal.The research results of this paper provide a solution for the application of simulation experiment in the teaching of Test Technology.