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论文采用计算机虚拟仪器开发平台LabVIEW及PCI-1200数据采集卡等相应硬件设计实现了虚拟数字示波器,所谓虚拟仪器技术,就是用户,根据测试任务的需要来定义和设计仪器的测试功能,即通过应用程序将通用计算机与功能模块硬件结合起来,用户可以通过友好的图形界面来操作这台计算机,虚拟仪器主要由硬件和软件两部分组成,其中硬件部分主要包括计算机和必要的计算机仪器硬件模块。LabVIEW图形化程序设计基于面向对象技术和数据流技术。通过实验证明虚拟实验系统能很好完成对信号的采集、分析处理等工作。具有快速、准确等特点。
In this paper, the virtual digital oscilloscope is designed and realized by the corresponding hardware design of the computer virtual instrument development platform LabVIEW and PCI-1200 data acquisition card. The so-called virtual instrument technology is the user, according to the needs of the test task to define and design the test function of the instrument, The program combines the general purpose computer with the function module hardware. The user can operate the computer through a friendly graphical interface. The virtual instrument mainly consists of hardware and software. The hardware part mainly includes the computer and the necessary computer instrument hardware module. LabVIEW graphical programming is based on object-oriented techniques and data flow techniques. Experiments show that the virtual experiment system can accomplish the signal acquisition, analysis and processing well. With fast, accurate and so on.