【摘要】 虚拟仪器借助于通用的硬件装置,通过编制不同的自动测量软件,可构造几乎任意功能的测量仪器。基于VXI总线的测试系统与基于VEE开发平台的自动测试软件构成具有代表性的虚拟仪器。本文针对视频信号虚拟测量仪器的研制,详细分析了视频信号的特点,介绍了虚拟仪器的组成和信号采集、存储、分析、显示的自动测量软件的开发方法,同时给出了虚拟仪器的测量结果。视频信号虚拟仪器的实现,体现了VXI总线的测试系统的通用性和VEE开发平台的灵活性及其强大的功能。更多还原

【Abstract】 Ⅵ(virtual instrument) made up of general hardware and kinds of auto-test software is available for almost all functions of test and measurement.Test system based on VXIbus and auto-test software based on VEE is an example ofⅥ.This paper introducesⅥapplications on video signal test,analyzes video signal characters in detailed,describes the system integrate and auto-test software development of theⅥ,reveals plenty of test data recorded in graph、chart and file that collected by auto-test software,also the analysis and judgment result of video signal tested by the auto-test software.The VI application of video signal test shows its common use and the powerful functions and competence of VEE.更多还原