多路虚拟示波记录系统的设计与实现  

Design and Implementation of Multi-channels Virtual Oscillographic Recorder

作　　者：高智刚[1] 周军[1] 周凤岐[1] 耿克达[1] 

机构地区：[1]西北工业大学精确制导与控制研究所,陕西西安710072

出　　处：《计算机测量与控制》2010年第5期1221-1224,共4页Computer Measurement &Control

摘　　要：为了实现低成本的多路信号采集、显示与记录,以PC-DAQ硬件结构和LabVIEW软件平台为基础,采用事件结构和动态调用技术,通过对控件属性节点的读写,实现了对多路模拟信号的同步测量、实时显示和波形数据记录与回放;同时,还提供了多路同步测量光标、波形滚动与缩放,以及丰富的波形运算功能,完成了多路虚拟示波记录系统的开发,达到了低成本化的要求;通过对所设计的8通道虚拟示波记录仪进行测试标定,验证了本系统具有操作简便,结果准确可靠,显示测量软件方便宜用、界面友好等优点,较好地实现了示波记录仪的各项功能。Based on the PC-DAQ hardware structure and LabVIEW graphical development language, an application of multi--channels virtual oscillographic recorder is presented in order to realize the low cost of signal collection, display and record. By using the technology of dynamic calling and case structure, reading and writing for the attribute node of LabVIEW functions, an oscillographic recorder can be imple- mented, which can realize multi--channels simultaneous measurement, real--time display and waveform record ＆ reappearance. At the same time, powerful function of multi--cursors synchronous measurement, waveform rolling and waveform calculation can be also supplied. Test results show that, this multi--channels virtual oscillographic record system is a reliable low--cost solution which can obtain accurate test data and work friendly.

关 键 词：示波记录仪 PC—DAQ LABVIEW 海量数据读写 多路光标同步测量 

分 类 号：TM938.6[电气工程—电力电子与电力传动]