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阐述了在仪器领域将起重要作用的虚拟仪器ＶＩ的基本概念。由计算机和一些基本的软、硬件就可构成虚拟仪器系统。通过改变程序，可以获得测量所需的各类仪器。其优点是用户能根据不同要求自行设计仪器系统，灵活、高效。
The basic concepts of virtual instrument VI that will play an important role in the field of instrumentation are described. By the computer and some basic software and hardware can constitute a virtual instrument system. By changing the program, you can get all kinds of instruments required for measurement. The advantage is that users can design their own instrument system according to different requirements, flexible and efficient.