【作者】 张婧； 朱俊； 李美亚；

【Author】 ZHANG Jing,ZHU Jun,LI Mei-ya (School of Physics and Technology,Wuhan University,Wuhan 430072,China)

【机构】 武汉大学物理科学与技术学院；

【摘要】 应用NI公司的LabVIEW软件,设计出基于物理实验教学中最常用的双通道虚拟示波器。与通常的真实示波器不同,该虚拟示波器主要的测试参数,如触发电平等,都需要经过适当的调整后才能得到正确的测试结果,从而克服了真实示波器由于设置相对固定等不利于实验教学的弊端,有利于学生掌握示波器中同步触发等概念。更多还原

【Abstract】 Based on the LabVIEW software of NI Corporation,we schemed out general virtual oscilloscope with double channel for experiment teaching in physics.Compared with the real oscilloscope,the main measurement parameters of the virtual oscilloscope,such as trigger level,were required to adjust properly in order to get the correct results.Thus for the experimental teaching,we overcame the disadvantage of relatively fixed settings in the real oscilloscope,which is favourable for student to understand the idea about the trigger in oscilloscope.更多还原