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毕业设计 简易数字存储示波器设计,简易数字存储示波器全文55页 约20000字包括电路图,流程图,中英文翻译,程序语言精准,图文并茂,推荐下载!摘要本文提供了一种简单实用的数字存储示波器的设计方案。该设计主要由四个模块电路组成:前端信号处理模块、数据的采集与存储模块、键盘输入控制模块、单片机控制模块与lcd显示模块。采样率可达1m,并具有数据的采集、显...
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简易数字存储示波器
全文55页 约20000字
包括电路图,流程图,中英文翻译,程序语言精准,图文并茂,推荐下载!
摘 要
本文提供了一种简单实用的数字存储示波器的设计方案。该设计主要由四个模块电路组成:前端信号处理模块、数据的采集与存储模块、键盘输入控制模块、单片机控制模块与LCD显示模块。采样率可达1M,并具有数据的采集、显示菜单、单次触发、存储显示等功能。数字存储示波器是20世纪70年代初发展起来的一种新型示波器。这种类型的示波器可以方便地实现对模拟信号波形进行长期存储并能利用机内微处理器系统对存储信号做进一步的处理,例如对被测波形的频率、幅值、平均值等参数的自动测量以及多种复杂的处理。数字存储示波器是一种基于计算机技术的新型数字示波器,其前半部功能是一个高速数据采集与存储系统,后半部是一个数据处理与显示系统。数字存储示波器对波形的取样和存储与波形的显示是可以分离的,而且能长时间的保存信号,具有先进的触发和数字信号的输入/输出功能。数字存储示波器的出现使得传统示波器的功能发生了重大变革。
关键词 示波器,单片机,可编程逻辑器件,高速AD转换,存储,数字,LCD
ABSTRACT
This text provides a kind of in brief practical digital storage oscilloscopes project of machine. The design to main be constitute by an electric circuit of four molds: the head signal processing mold piece, data collect with saving mold piece, keyboard importation control mold piece, a machine control the mold piece and LCD show the mold piece, The sample rate can attain the 1M, and have the data to collect, the manifestation menu, single time trigger, saving manifestation etc. function. The digital storage oscilloscopes develop at the beginning of 70’s in 20 centuries a kind of new show a machine. This kind of type show a machine and can carry out expediently to imitate a form of signal to carry on lone-term saving can make use of the microprocessor system inside the machine also to saving the signal do into-the processing that tread, for example to is measure a frequency of form, value, in front and back follow time, average value etc. automatic diagraph and various complicated processingses of the parameter. The digital storage oscilloscopes make the tradition show a function of machine to take place the graveness change.The digital storage oscilloscopes is a kind of oscilloscopes according to the technical new numeral of calculator, its first half department is one piece according to the processing and the manifestation systems. The digital storage oscilloscopes to the sampling of a form and saving with the manifestation of a form is to separate of, and can keep the signal with long hours, having the forerunner of trigger and the input/output function of the numerical signal.
Keywords : Oscilloscopes,Chipmicrocomputer,CPLD,High-speed AD conversion, Storage,Digital,LCD
目 录
第1章 绪论………………………………………………………………… 1
1.1 工作原理………………………………………………………………… 1
1.2 实时取样方式的采集原理………………………………………………………2
1.3 取样与A/D转换………………………………………………………………… 2
第2章 理论分析与计算…………………………………………………………3
2.1 要求…………………………………………………………………………… 3
第3章 方案选择与设计…………………………………………………………4
3.1 方案选择………………………………………………………………………4
3.1.1 总体方案比较……………………………………………………………4
3.1.2 信号处理…………………………………………………………………6
3.1.3 触发电路…………………………………………………………………6
3.1.4 取样方式的选择…………………………………………………………6
3.1.5 A/D转换器的选择………………………………………………………6
3.1.6 存储器的选择……………………………………………………………7
3.1.7 控制部分…………………………………………………………………7
3.2 总体设计………………………………………………………………………8
3.3 详细设计………………………………………………………………………9
3.3.1 单片机系统…………………………………………………………………9
3.3.2 A/D转换……………………………………………………………………13
3.3.3 采样与存储控制电路的设计………………………………………………13
3.3.4 波形显示……………………………………………………………………14
第4章 软件控制设计………………………………………………………………16
4.1 单片机程序设计…………………………………………………………………16
4.2 CPLD程序设计…………………………………………………………………19
第5章 系统性能测试………………………………………………………………22
第6章 结论……………………………………………………………………………25
6.1 小结………………………………………………………………………………25
6.2 测试结论…………………………………………………………………………25
文献综述……………………………………………………………………………27
参考文献…………………………………………………………………………….29
致谢……………………………………………………………………………………30
附录1…………………………………………………………………………………31
附录2……………………………………………………………………………………35
附录3……………………………………………………………………………………44
全文55页 约20000字
包括电路图,流程图,中英文翻译,程序语言精准,图文并茂,推荐下载!
摘 要
本文提供了一种简单实用的数字存储示波器的设计方案。该设计主要由四个模块电路组成:前端信号处理模块、数据的采集与存储模块、键盘输入控制模块、单片机控制模块与LCD显示模块。采样率可达1M,并具有数据的采集、显示菜单、单次触发、存储显示等功能。数字存储示波器是20世纪70年代初发展起来的一种新型示波器。这种类型的示波器可以方便地实现对模拟信号波形进行长期存储并能利用机内微处理器系统对存储信号做进一步的处理,例如对被测波形的频率、幅值、平均值等参数的自动测量以及多种复杂的处理。数字存储示波器是一种基于计算机技术的新型数字示波器,其前半部功能是一个高速数据采集与存储系统,后半部是一个数据处理与显示系统。数字存储示波器对波形的取样和存储与波形的显示是可以分离的,而且能长时间的保存信号,具有先进的触发和数字信号的输入/输出功能。数字存储示波器的出现使得传统示波器的功能发生了重大变革。
关键词 示波器,单片机,可编程逻辑器件,高速AD转换,存储,数字,LCD
ABSTRACT
This text provides a kind of in brief practical digital storage oscilloscopes project of machine. The design to main be constitute by an electric circuit of four molds: the head signal processing mold piece, data collect with saving mold piece, keyboard importation control mold piece, a machine control the mold piece and LCD show the mold piece, The sample rate can attain the 1M, and have the data to collect, the manifestation menu, single time trigger, saving manifestation etc. function. The digital storage oscilloscopes develop at the beginning of 70’s in 20 centuries a kind of new show a machine. This kind of type show a machine and can carry out expediently to imitate a form of signal to carry on lone-term saving can make use of the microprocessor system inside the machine also to saving the signal do into-the processing that tread, for example to is measure a frequency of form, value, in front and back follow time, average value etc. automatic diagraph and various complicated processingses of the parameter. The digital storage oscilloscopes make the tradition show a function of machine to take place the graveness change.The digital storage oscilloscopes is a kind of oscilloscopes according to the technical new numeral of calculator, its first half department is one piece according to the processing and the manifestation systems. The digital storage oscilloscopes to the sampling of a form and saving with the manifestation of a form is to separate of, and can keep the signal with long hours, having the forerunner of trigger and the input/output function of the numerical signal.
Keywords : Oscilloscopes,Chipmicrocomputer,CPLD,High-speed AD conversion, Storage,Digital,LCD
目 录
第1章 绪论………………………………………………………………… 1
1.1 工作原理………………………………………………………………… 1
1.2 实时取样方式的采集原理………………………………………………………2
1.3 取样与A/D转换………………………………………………………………… 2
第2章 理论分析与计算…………………………………………………………3
2.1 要求…………………………………………………………………………… 3
第3章 方案选择与设计…………………………………………………………4
3.1 方案选择………………………………………………………………………4
3.1.1 总体方案比较……………………………………………………………4
3.1.2 信号处理…………………………………………………………………6
3.1.3 触发电路…………………………………………………………………6
3.1.4 取样方式的选择…………………………………………………………6
3.1.5 A/D转换器的选择………………………………………………………6
3.1.6 存储器的选择……………………………………………………………7
3.1.7 控制部分…………………………………………………………………7
3.2 总体设计………………………………………………………………………8
3.3 详细设计………………………………………………………………………9
3.3.1 单片机系统…………………………………………………………………9
3.3.2 A/D转换……………………………………………………………………13
3.3.3 采样与存储控制电路的设计………………………………………………13
3.3.4 波形显示……………………………………………………………………14
第4章 软件控制设计………………………………………………………………16
4.1 单片机程序设计…………………………………………………………………16
4.2 CPLD程序设计…………………………………………………………………19
第5章 系统性能测试………………………………………………………………22
第6章 结论……………………………………………………………………………25
6.1 小结………………………………………………………………………………25
6.2 测试结论…………………………………………………………………………25
文献综述……………………………………………………………………………27
参考文献…………………………………………………………………………….29
致谢……………………………………………………………………………………30
附录1…………………………………………………………………………………31
附录2……………………………………………………………………………………35
附录3……………………………………………………………………………………44