基于LabWindowsCVI的示波器设计【参考】.doc

攀枝花学院本科毕业设计（论文） 基于LabWindows/CVI的示波器设计 学生姓名： 翟 果 学生学号： 200810504039 院（系）： 电器信息工程学院 年级专业： 2008级测控技术与仪器 指导教师： 伍维根 教授 助理指导教师： 范方灵 副教授 二〇一二年五月 摘 要 随着计算机技术、大规模集成电路技术和通信技术的飞速发展，仪器技术领域发生了巨大的变化，美国国家仪器公司于20世纪80年代中期首先提出基于计算机技术的虚拟仪器的概念，把虚拟测试技术带入新的发展时期，随后研制和推出了基于多种总线系统的虚拟仪器。经过十几年的发展，虚拟仪器技术将高速发展的计算机技术、电子技术、通信技术和检测技术结合起来，开创了个人计算机仪器时代，是测量仪器工业发展的一个里程碑。 本课题在掌握了虚拟仪器的基本结构及信号处理的相关知识基础之上，设计了一套虚拟示波器。对虚拟仪器的概念，结构，发展趋势进行了相关分析。介绍了与信号处理相关的基础知识。虚拟仪器主要由硬件和软件两个部分构成。本文对虚拟示波器的硬件即数据采集卡进行了简单的介绍，对其软件部分进行了详细研究，并对该设计的应用及意义作出了详细介绍。在此基础上完成了虚拟双踪示波器的基本功能的设计。 关键词 虚拟仪器，虚拟示波器，数据采集，设计应用  ABSTRACT Along with computer technology, large scale integrated circuit technology and the rapid development of communication technology, instrument technology field has undergone tremendous changes, the United States National Instruments Corporation in the nineteen eighties medium is put forward based on the computer technology the concept of virtual instrument, virtual test technology into a new period of development, then developed and introduced based on multiple bus system virtual instrument. After ten years of development, virtual instrument technology will speed the development of the computer technology, electronic technology, communication technology and detection technology together, created a personal computer equipment era, is a measuring instrument of industrial development of a milepost. This topic is in the grasp of the virtual instruments basic structure and signal processing of the knowledge base, design a set of virtual oscilloscope. On the concept of virtual instrument, structure, development trend and the correlation analysis. Introduces the basic knowledge related with signal processing. Virtual instrument is mainly composed of hardware and software in two parts. The virtual oscilloscope data acquisition card hardware is introduced in brief, on the part of the software were studied in detail, and the design of the applicat