基于PCI6221的虚拟数字存储示波器设计

数字示波器是科学研究和生产线检测经常使用的一种台式仪器,目前这类仪器加工复杂,价格昂贵,使用功能扩展比较困难。本文应用NI公司提供的LabVIEW软件和数据采集卡PCI6221,完成的虚拟示波器的设计,不但具有传统示波器的图形功能,还可以实现波形保存和回显、数字滤波以及频谱分析等功能。用户可以根据实际生产或科研需要,还可以进一步扩展该示波器的功能。

Digital oscilloscope（DSO） is a regular equipment used by the scientific research and testing production lines.DSO is always complex and expensive.This design is Based on NI LabVIEW and acquisition card PCI6221,and the DSO is not only have the graphics features with traditional oscilloscopes,but also have some new functions such as digital filtering and spectral analysis.Users can easily expand its further functions based on the needs of actual production or research.