【摘要】 虚拟仪器技术是计算机 ,测量仪器技术 ,软件技术的迅速发展 ,相互融合而孕育出来的一项新技术。虚拟仪器技术的核心是利用计算机的强大资源 ,使需要硬件来实现的技术软件化 ,以最大限度降低系统成本 ,增强系统功能与灵活性 ,与电子仪器相比有很大的优越性。阐述了虚拟数字示波器的设计原理与实现过程 ,利用VB编程 ,借助于数据采集等硬件 ,实现了双踪示波器的功能 ,双通道显示 ,可测输入信号的电压、频率、周期以及存储信号等。说明了虚拟仪器的实用性更多还原

【Abstract】 Virtual instrument is an advanced technology that combines testing technology with software technology. The main idea of the virtual instrument is to take the place of the hardware with the software, thus reduce the cost of measuring system and make the system more flexible and powerful. The design method of virtual digital oscilloscope was introduced. In VB language and with a certain hardware, a complete two-channel storage oscilloscope was implemented. It can measure input voltage, frequency, period, and also can sore the wave or data. The experiment results verify the applicability of the virtual instrument.更多还原