自动化测控技术与仪器 基于labview的虚拟示波器的设计方案和实现毕业设计.doc

毕业设计（论文） 基于LabVIEW的虚拟示波器的设计和实现 系 别 专 班级 学生姓名 指导教师 2012年6月15日基于LabVIEW的虚拟示波器的设计和实现 摘要,让学生掌握示波器的工作原理、示波器的测试和示波器的主要控键。设计中我们通过模拟信号发生器产生的多通道信号对多种控制参数进行了设置、实时采集、处理、显示和存储等功能的试验，但在进行硬件试验时并未成功。另外在程序的繁琐程度，资源的利用率方面仍有改进的需要。 关键词：LabVIEW；示波器；虚拟仪器；采集卡 Design and Implementation of the Virtual Oscilloscope Based on LabVIEW Author： Tutor：Abstract With the rapid development of integrated microelectronics technology and microcomputer technology, modern digital storage oscilloscope as a precision electrical measuring instruments to develop faster, more powerful, higher and higher precision, but more and more shapebeautiful. However, the existing digital storage oscilloscope prices are generally high, its application is subject to certain restrictions. Make full use of virtual reality technology is a powerful, cost-effective virtual digital oscilloscope, so that it can better meet the needs of practical application, with good practical significance. This paper introduces the research background and significance of the virtual instrument, as well as some progress at home and abroad. Next on the virtual instrument overall, to discuss the concept of virtual instruments, composition, characteristics, development has established the basic framework of the virtual instrument, on this basis, the system design of the virtual oscilloscope. Completed the detailed design of the virtual oscilloscope module, including the data acquisition module, the user interface module, a spectrum analysis module, dual-channel signal generation module, waveform display module and parameters to calculate the module design, and also discussed the technical aspects of software design. The oscilloscope is mainly used for electronic measuring instruments and teaching, enable students to acquire the works of the oscilloscope, oscilloscope test an