摘要
说明了在直流屏工控机系统中软示波器设计的必要性，详细介绍了该软示波器的功能要求和用ＶＢ实现软示波器的界面设计及程序设计的方法。
The necessity of designing the virtual oscilloscope in the industrial computer system of the direct current shield is described.Its function requirement,interface design by VB and program design method are introduced.
关键词
示波器
直流屏
工控机
程序设计
oscilloscope
direct current set
industrial computer
