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本科毕业论文(设计)题目基于LabVIEW的虚拟示波器设计学生指导教师讲师年级2011级专业电子信息工程二级学院信息工程学院信息工程学院2015年5月郑重声明本人的毕业论文(设计)是在指导教师的指导下独立撰写完成的。如有剽窃、抄袭、造假等违反学术道德、学术规范和侵权的行为,本人愿意承担由此产生的各种后果,直至法律责任,并愿意通过网络接受公众的监督。特此郑重声明。毕业论文(设计)作者(签名):年月日I基于LabVIEW的虚拟示波器设计摘要虚拟仪器技术发展很快,以美国国家仪器公司为代表的一批厂商已经在市场上推出了基于虚拟仪器技术而设计的商品化仪器产品。在美国虚拟仪器系统及其图形编程语言,已作为各大学理工科学生的一门必修课。虚拟仪器发展至今已经算是比较成熟,和传统仪器相比有明显的优势虚拟仪器技术拥有强大的模块化硬件和高效灵活的软件使其能完成各类测试、测量和自动化的应用,极大的提高了产品开发和生产效率。本次虚拟示波器设计软件是基于美国NI公司的LabVIEW。LabVIEW在是在计算机上进行数据采集、数据分析处理。实现虚拟示波器的功能主要有从外界采样模拟信号,转化为相应的数字信号,在计算机上实现波形的显示,并能够进行简单的波形处理,可以显示波形的最大值、最小值、平均值,并能够根据需要放大波形的倍数,最后进行调试完成。关键词:LabVIEW虚拟仪器虚拟示波器IIDesignofOscillograpebasedonLabVIEWXingLongDirectedbyJiaSumei[Lecturer]ABSTRACTVirtualinstrumenttechnologyisdevelopingrapidlynow,nationalinstrumentsasarepresentativeofanumberofmanufacturershavebeenlaunchedinthemarketbasedonvirtualinstrumenttechnologyanddesigninstrumentthecommercializationoftheproducts.VirtualinstrumentsystemintheUnitedStatesanditsgraphicalprogramminglanguage,hasbeenasarequiredcoursefortheuniversityofscienceandengineeringstudents.Sincethevirtualinstrumentdevelopmentisverymature,andhasobviousadvantageincomparisontotraditionalinstrumentsvirtualinstrumenttechnologyhasastrongmodularhardwareandhighlyefficientandflexiblesoftwarecanmakeitdoallkindsoftest,measurementandautomationapplications,greatlyimprovetheefficiencyofproductdevelopmentandproduction.ThevirtualoscilloscopedesignsoftwareisbasedontheNIcompanyLabVIEW.LabVIEWisinonthecomputerfordataacquisition,dataanalysisandprocessing.Realizethefunctionofthevirtualoscilloscopemainlyincludesamplinganalogsignalsfromtheoutsideworld,intothecorrespondingdigitalsignal,realizesthewaveformdisplayonthecomputer,andabletoperformsimplewaveformprocessing,candisplaythewaveformofmaximum,minimum,average,andcanaccordingtoneedtoamplifymultiplesofwaveform,thefinaldebugging.KEYWORDS:LabVIEWVirtualinstrumentVirtualoscilloscopeI目录1绪论............................................................................................................................22虚拟仪器的概述........................................................................................................32.1虚拟仪器的基本概念.....................................................................................32.1.1虚拟仪器的产生..................................................................................32.1.2虚拟仪器的概念..................................................................................32.1.3虚拟仪器的结构..................................................................................42.1.4虚拟仪器的特点..................................................................................42.2虚拟仪器发展现状.........................................................................................42.2.1虚拟仪器的现状..................................................................................42.2.2虚拟仪器的发展趋势..........................................................................52.3LabVIEW图形化编程语言............................................................................52.3.1什么是LabVIEW................................................................................52.3.2LabVIEW的特点.................................................................................63虚拟示波器的原理....................................................................................................63.1数字示波器.....................................................................................................63.2虚拟示波器.....................................................................................................74虚拟示波器的总体设计............................................................................................84.1虚拟示波器的设计方案.................................................................................84.2虚拟示波器的主要功能.................................................................................95虚拟示波器的软件设计..........................................................................................105.1虚拟示波器的波形显示...............................................................................105.2虚拟示波器的其功能...................................................................................125.2.1虚拟示波器的存储和读取................................................................125.2.2虚拟示波器参数测量显示................................................................145.2.3虚拟示波器应用程序文件生成........................................................165.2.4虚拟示波器其他子程序....................................................................166结论..........................................................................................................................18参考文献......................................................................................................................19致谢..........................................................................................................................2021绪论测量仪器发展至今,大体发展可分为四个时期,即模拟仪器、分立式元件仪器、数字化仪器、智能仪器和虚拟仪器。传统仪器和虚拟仪器相比,不管是开发或者应用,都缺乏灵活性。第四代虚拟示波器是现代计算机技术、通信技术和测量技术相结合的产物,也是传统仪器观念的一次巨大变革。随着科技发展时代前进虚拟技术也在迅速的发展,虚拟仪器技术在很多方面打破了传统仪器的观念,虚拟仪器灵活多变的编程方式和传统仪器产生了巨大的差异,不仅包含传统仪器的特点及功能也灵
本文标题:54基于LabVIEW的虚拟示波器设计
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