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虚拟仪器技术是仪器技术与计算机技术结合的产物。文中介绍了虚拟仪器系统的构成及虚拟仪器软件开发平台Ｌａｂｗｉｎｄｏｗｓ／ＣＶＩ的主要特点，并以与μＸＬ集散型控制系统数据通信为例介绍了ＣＶＩ的应用。
Virtual instrument technology is a combination of instrument technology and computer technology. In this paper, the composition of virtual instrument system and the main features of Labwindows / CVI, a virtual instrument software development platform, are introduced. The application of CVI with the example of data communication with μXL distributed control system is introduced.