基于labviewns级陡波信号采集与处理系统设计.doc

基于labview的ns级陡波信号采集与处理系统的设计 摘要 对于传统的信号采集与处理系统设备，花费成本高，兼容性差、使用过程中额外费用多并且要求操作员具有较高的熟练程度。考虑到那些问题后，本设计论文就是一种新的信号采集与处理平台的虚拟仪器软件的使用即labview8.20. 值得一提的是实际上labview软件是虚拟仪器领域中最具代表性的图形化编程开发平台，在本设计中研究了基于这种软件编程环境实现的信号采集与处理。基于这种labview8.20软件，本系统要在前面板放置波形显示控件来完成处理前后波形和数据参数的显示同时在程序框图创建程序的节点连接实现信号的发生、采集与处理过程的程序设置。并且考虑到以后波形的调用问题，基于主前面板波形显示部分又创建了子VI环节可以更好的实现波形的前后比较及调用。基于labview8.20这种软件所完成的信号设计系统，可以在不同点不同高度完成从时域到频域的数据处理及波形分析。除此之外还可以实现波形的及时显示，多格式的存储、恢复查询等功能。本信号设计系统的较好完成能够满足工业实践、教学演示和深入研究的需要，所以在未来虚拟仪器实际工程运用的普遍发展中其应用范围将越来越广泛。 NS Orders Steep Wave Signal Acquisition and Processing System based on LabVIEW 8.20 Abstract: When it comes the tranditional signal acquisition and processing equipments ，these disadvantages of them are high cost,poor compatibility,poor expansibility and higher requirements for operators. In order to overcome those problems,in this paper a new signal acquisition and processing system of steep wave which based on the virtual instrument software platform LabVIEW 8.20 was designed . Specially,in fact labview is introduced as a kind of the most representative graphical programming platforms in Virtual instrument field and realizing signal acquisition based on labview programming environment is studied. The system which is made of the front panel and program block diagram can complete the generatiion of vibration signals ,signals acquisiting and processing. In this system ，generating the sub-Vi which bases on the waveform display in the front panel can accomplish the wave comparison much butter。The system can analyze signal from time domain to frequency domain in different point and different depth in this software。Whatˊs more，this system also has the features such as real-time display, multi-format save,rehabilitation and so on。Thinking about these characteristics of the system whose capabilities could be come true , it fully meets the requirements of industrial testing,teaching and research so it has broad prospects for future application. 目录