Design of the USB virtual oscilloscope based on VB is introduced. The design includes interface,wave-display and USB communication. In addition,agreement of communication and drawings of running result of the virtual oscilloscope are also presented.

• 对一种基于VB的USB接口虚拟示波器的设计方法进行了研究,研究内容包括界面和波形显示设计以及USB通讯的软件设计,并给出了通讯协议和虚拟示波器实际运行时的效果图。