文氏桥振荡器实验报告

文氏桥振荡器实验报告内蒙古师范大学计算机与信息 工程 路基工程安全技术交底工程项目施工成本控制工程量增项单年度零星工程技术标正投影法基本原理 学院《电子工艺实训》课程设计报告实习题目指导教师职称设计题目文氏桥振荡器的焊接与测试学生姓名指导教师职称张鹏举讲师学号姓名。。。。。。日期学号。。。。。。。日期2013年7月5日witheffectivemeasures.Publicsecuritymonitoringsystemusedadvancedof,andpreventioncapacityverystrongofdigitalintegratedsystem,itcanthroughremotecontrolphotoasmachinedirectlywatchwasmonitoredplacesofsituation,ataglance;monitoringpicturecanselectSD,HD,mode,monitoringimagequalityhigh,pictureclearsmooth,adaptedcurrentandfutureonmonitoringclarityofrequirements.monitoringsystemcanandalarm,othersecuritytechnologypreventionsystemlinkagerun,makessystemofpreventioncapacitymorepowerful.Withadvanceduserrightsmanagementsystemapplicationsoftware,avoidbeyondthepurviewofthemonitoring,control,setting,avoidanillegaloperation.Theprogrammemonitoringsystemusesamodulardesign,youcanprovideamoreflexiblesystem,userscanbeconfiguredflexiblyaccordingtodemandamountofhardware.Whenthesystemneedstochangewhenthemonitoringlevel,thenumberofnetworkclientsbyaddingthecorrespondingstandalonesystemscanbeintegratedintoexistingsystems.Videosurveillancesetofnetworkmanagementplatformaccessgateway,professionalstorage,monitoring,intelligentanalysisoftheplatforminone.Supportconcurrentaccessequivalentto256D1digitalvideo,when1080Psupport32-way,720P96channels.Cansupportupto100simultaneoususers,equivalent128-channelD1videovideostreamforwardingnumber.MonitoringfrontendoverIPnetworkconnectionsandrelateddevicessuchasalarms,youcanachieveafullydigitallynetworkedvideosurveillance.Intelligentretrievalsystemtosupportvideocontentenhancements,canbeusedforvideocontentbykeyword,keyfeaturesoftheautomaticsearch,imageandvideosearchfeatureandvideodisplay.文氏桥振荡器的焊接与测试的实验报告计算机与信息工程学院2012级12班hjgh3455456指导教师张鹏举教授摘要根据元件包中所提供元件,应用集成运放设计并搭建实现文氏桥振荡电路,调解电路中参数使得电路输出从有到无,从正弦波到失真。定量的绘出正弦波的波形, 记录 混凝土 养护记录下载土方回填监理旁站记录免费下载集备记录下载集备记录下载集备记录下载 起振时的电路参数,分析负反馈强弱对起振条件及输出波形的影响。并记录出最大不失真输出时的振幅。关键词文氏桥振荡器,振荡频率,正玄波1设计任务及主要技术指标和要求(1)进一步掌握焊接技术。(2)掌握文氏桥振荡器的组成及工作原理。(3)掌握文氏桥振荡器的调整方法和自动稳幅系统的作用。2引言在所有低频振荡电路中，文氏桥是最简单的一种，其工作状况几乎不受外部环境变化的影响，很少发生背离设计初衷的情况。即使采用非常普通的 标准 excel标准偏差excel标准偏差函数exl标准差函数国标检验抽样标准表免费下载红头文件格式标准下载 器件，也能输出非常标准的正弦波，受运算放大器的限制也很小。尽管如此，对文氏桥的理解也不能过于简单，由于设计过于理想化或简单way,720P96channels.Cansupportupto100simultaneoususers,equivalent128-080Psupport32monitoring,intelligentanalysisoftheplatforminone.Supportconcurrentaccessequivalentto256D1digitalvideo,when1orage,anbeintegratedintoexistingsystems.Videosurveillancesetofnetworkmanagementplatformaccessgateway,professionalsttemneedstochangewhenthemonitoringlevel,thenumberofnetworkclientsbyaddingthecorrespondingstandalonesystemschesyssign,youcanprovideamoreflexiblesystem,userscanbeconfiguredflexiblyaccordingtodemandamountofhardware.Whenthepurviewofthemonitoring,control,setting,avoidanillegaloperation.Theprogrammemonitoringsystemusesamodulardeyondtmakessystemofpreventioncapacitymorepowerful.Withadvanceduserrightsmanagementsystemapplicationsoftware,avoidbeonitoringclarityofrequirements.monitoringsystemcanandalarm,othersecuritytechnologypreventionsystemlinkagerun,eonme;monitoringpicturecanselectSD,HD,mode,monitoringimagequalityhigh,pictureclearsmooth,adaptedcurrentandfuturntegratedsystem,itcanthroughremotecontrolphotoasmachinedirectlywatchwasmonitoredplacesofsituation,ataglancaliwitheffectivemeasures.Publicsecuritymonitoringsystemusedadvancedof,andpreventioncapacityverystrongofdigit-eocontentbykeyword,keyfeaturesoftheautomaticsearch,imageandvideosearchfeatureandvideodisplay.orvidllydigitallynetworkedvideosurveillance.Intelligentretrievalsystemtosupportvideocontentenhancements,canbeusedfardingnumber.MonitoringfrontendoverIPnetworkconnectionsandrelateddevicessuchasalarms,youcanachieveafuchannelD1videovideostreamforw-2-化会导致其性能或结果偏离设计要求。3工作原理文氏电桥振荡电路又称RC串并联网络正弦波振荡电路，它是一种较好的正弦波产生电路，适用于频率小于1MHz，频率范围宽，波形较好的低频振荡信号。从结构上看，正弦波振荡器是没有输入信号的，为了产生正弦波，必须在放大电路里加入正反馈，因此放大电路和正反馈风络是振荡电路的最主要部分。但是，这样两部分构成的振荡电路通常是得不到正弦波的，这是由于正反馈时不量是很难控制，帮还需要加入一些其他电路。下图即为运算器组成的文氏电桥RC正弦波振荡电路(图1)。图1RC文氏桥振荡器4电路组成部分为了产生正弦波，必须在放大电路里加入正反馈，因此放大电路和正反馈网络是振荡电路的最主要部分。但是，这样两部分构成的振荡器一般得不到正弦波，这是由于很难控制正反馈的量。如果正反馈量大，则增幅，输出幅度越来越大，最后由三极管的非线性限幅，这必然产生非线性失真。反之，如果正反馈量不足，则减幅，可能停振，为此振荡电路要有一个稳幅电路。为了获得单一频率的正弦波输出，应该有选频网络，选频网络往往和正反馈网络或放大电路合而为一。选频网络由R、C和L、C等电抗性元件组成。正弦波振荡器的名称一般由选频网络来命名。正弦波发生电路的组support32toring,intelligentanalysisoftheplatforminone.Supportconcurrentaccessequivalentto256D1digitalvideo,when1080Pmoniintegratedintoexistingsystems.Videosurveillancesetofnetworkmanagementplatformaccessgateway,professionalstorage,eedstochangewhenthemonitoringlevel,thenumberofnetworkclientsbyaddingthecorrespondingstandalonesystemscanbetemnyoucanprovideamoreflexiblesystem,userscanbeconfiguredflexiblyaccordingtodemandamountofhardware.Whenthesysrviewofthemonitoring,control,setting,avoidanillegaloperation.Theprogrammemonitoringsystemusesamodulardesign,hepusystemofpreventioncapacitymorepowerful.Withadvanceduserrightsmanagementsystemapplicationsoftware,avoidbeyondtringclarityofrequirements.monitoringsystemcanandalarm,othersecuritytechnologypreventionsystemlinkagerun,makesmonitonitoringpicturecanselectSD,HD,mode,monitoringimagequalityhigh,pictureclearsmooth,adaptedcurrentandfutureonatedsystem,itcanthroughremotecontrolphotoasmachinedirectlywatchwasmonitoredplacesofsituation,ataglance;moalintegrwitheffectivemeasures.Publicsecuritymonitoringsystemusedadvancedof,andpreventioncapacityverystrongofdigit-ntentbykeyword,keyfeaturesoftheautomaticsearch,imageandvideosearchfeatureandvideodisplay.deocoigitallynetworkedvideosurveillance.Intelligentretrievalsystemtosupportvideocontentenhancements,canbeusedforvignumber.MonitoringfrontendoverIPnetworkconnectionsandrelateddevicessuchasalarms,youcanachieveafullydchannelD1videovideostreamforwardin-way,720P96channels.Cansupportupto100simultaneoususers,equivalent128-3-成:放大电路、正反馈网络、选频网络、稳幅电路。5设计步骤及方法(1)文氏桥振荡器的焊接:按所给电路图进行装配，焊接。仔细检查有无错误、漏接、虚焊及有无短路等情况。如有应排除之。(2)?15V电源的调节方法;把实训台上双路稳压电源均调节至15V，然后如实验所给图接法，即可得到一组?15V直流电源。(3)接上电源，用示波器观察输出波形，调节电位器R4，观察波形的变化。6电路总体说明(1)文氏桥振荡器的实现根据元件包中所提供元件，应用集成运放设计并搭建实现文氏桥振荡电路，调解电路中参数使得电路输出从有到无，从正弦波到失真。定量的绘出正弦波的波形，记录起振时的电路参数，分析负反馈强弱对起振条件及输出波形的影响。并记录出最大不失真输出时的振幅。(2)研究RC参数对振荡频率的影响改变R、C参数的大小，用示波器观测起振的正弦输出，分析R、C参数对振荡频率的影响。7设计所用器材二极管40072个22K可变电阻1个0.01uf电容2个10K电阻4个集成运放1个电线若干UA7416.8K电阻1个示波器1个电板1个8小结通过这次试验我学会了关于文氏桥振荡器的原理及一些实践知识。尤其对焊接和测试的实践技术虽然是初次但受益匪浅，相信对以后的生活和-080Psupport32monitoring,intelligentanalysisoftheplatforminone.Supportconcurrentaccessequivalentto256D1digitalvideo,when1orage,anbeintegratedintoexistingsystems.Videosurveillancesetofnetworkmanagementplatformaccessgateway,professionalsttemneedstochangewhenthemonitoringlevel,thenumberofnetworkclientsbyaddingthecorrespondingstandalonesystemschesyssign,youcanprovideamoreflexiblesystem,userscanbeconfiguredflexiblyaccordingtodemandamountofhardware.Whenthepurviewofthemonitoring,control,setting,avoidanillegaloperation.Theprogrammemonitoringsystemusesamodulardeyondtmakessystemofpreventioncapacitymorepowerful.Withadvanceduserrightsmanagementsystemapplicationsoftware,avoidbeonitoringclarityofrequirements.monitoringsystemcanandalarm,othersecuritytechnologypreventionsystemlinkagerun,eonme;monitoringpicturecanselectSD,HD,mode,monitoringimagequalityhigh,pictureclearsmooth,adaptedcurrentandfuturntegratedsystem,itcanthroughremotecontrolphotoasmachinedirectlywatchwasmonitoredplacesofsituation,ataglancaliwitheffectivemeasures.Publicsecuritymonitoringsystemusedadvancedof,andpreventioncapacityverystrongofdigit-eocontentbykeyword,keyfeaturesoftheautomaticsearch,imageandvideosearchfeatureandvideodisplay.orvidllydigitallynetworkedvideosurveillance.Intelligentretrievalsystemtosupportvideocontentenhancements,canbeusedfardingnumber.MonitoringfrontendoverIPnetworkconnectionsandrelateddevicessuchasalarms,youcanachieveafuchannelD1videovideostreamforw-way,720P96channels.Cansupportupto100simultaneoususers,equivalent1284-实践学习颇有帮助。在试验中我们组遇到了很多困难和失败，但在张老师的帮助下，我们都收获了很多。经过这次课程，体会到了做实验的辛酸与困难，也体会到了做实验中的快乐。很感谢能够在张鹏举老师的指导下做实验，感谢张鹏举老师不辞辛劳的教导，在此表示衷心的感谢。参考文献【1】《模拟电子技术基础》(第四版)，高等教育出版社【2】《电子创新设计与实践》(第二版)王松武主编，国防工业出版社【3】《常用电路模块分析与设计指导》，王松武编制，清华大学出版社igitallynetworkedvideosurveillance.Intelligentretrievalsystemtosupportvideocontentenhancements,canbeusedforvignumber.MonitoringfrontendoverIPnetworkconnectionsandrelateddevicessuchasalarms,youcanachieveafullydchannelD1videovideostreamforwardin-way,720P96channels.Cansupportupto100simultaneoususers,equivalent128-support32toring,intelligentanalysisoftheplatforminone.Supportconcurrentaccessequivalentto256D1digitalvideo,when1080Pmoniintegratedintoexistingsystems.Videosurveillancesetofnetworkmanagementplatformaccessgateway,professionalstorage,eedstochangewhenthemonitoringlevel,thenumberofnetworkclientsbyaddingthecorrespondingstandalonesystemscanbetemnyoucanprovideamoreflexiblesystem,userscanbeconfiguredflexiblyaccordingtodemandamountofhardware.Whenthesysrviewofthemonitoring,control,setting,avoidanillegaloperation.Theprogrammemonitoringsystemusesamodulardesign,hepusystemofpreventioncapacitymorepowerful.Withadvanceduserrightsmanagementsystemapplicationsoftware,avoidbeyondtringclarityofrequirements.monitoringsystemcanandalarm,othersecuritytechnologypreventionsystemlinkagerun,makesmonitonitoringpicturecanselectSD,HD,mode,monitoringimagequalityhigh,pictureclearsmooth,adaptedcurrentandfutureonatedsystem,itcanthroughremotecontrolphotoasmachinedirectlywatchwasmonitoredplacesofsituation,ataglance;moalintegrwitheffectivemeasures.Publicsecuritymonitoringsystemusedadvancedof,andpreventioncapacityverystrongofdigit-ntentbykeyword,keyfeaturesoftheautomaticsearch,imageandvideosearchfeatureandvideodisplay.deoco5-