介绍了由数据采集、数据分析处理、数据输出与显示三部分模块组成的虚拟示波器。描述了基于PC I总线的高速数据采集卡的组成、工作原理及其实现,同时就虚拟示波器软件开中的驱动程序设计、数据分析处理、输出显示等方面进行了叙述。并给出了虚拟示波器的效果图。

A virtual oscilloscope is made up of data acquisition,data analysis/processing and data display modules.This paper firstly represented the constitute,the principle and the accomplishment of the high rate acquisition card based on PCI bus,then the driver design,data analysis/processing,and data output/display in the software development were introduced.Finally,the virtual oscilloscope effect figure was depicted.

TN957