基于虚拟技术的虚拟高频实验室仪器的实现
摘要
高频实验室是工科高等院校必备的实验教学设施。高频实验室存在着仪器种类多、成本高、用途单一等缺点。而虚拟仪器在很大程度上能够解决以上困境,并且有利于从整体上改善办学条件和提高教学水平。通常虚拟仪器系统由数据采集、数据分析、结果输出显示组成,数据采集部分通过硬件来实现,数据分析和结果输出完全由计算机的软件系统来完成。本文硬件选用NI公司生产的数据采集卡PC—6251结构,软件利用图形化编程语言LabVIEW为开发平台,从硬件结构和软件两个方面实现高频虚拟实验室仪器的设计。
本文在分析与研究虚拟仪器、虚拟仪器开发环境—LabVlEW、虚拟仪器硬件系统的基础上,重点依据高频放大器、调幅及检波、调频及鉴频、调相及鉴相原理,利用LabVIEW编程语言,结合编程思路与方法,对虚拟高频放大器、虚拟调幅及检波器、虚拟调频及鉴频器、虚拟调相及鉴相器进行设计与仿真。
本文采用LabVIEW编程语言对虚拟信号发生器、虚拟示波器、虚拟频谱分析仪进行设计,其可以实现信号生成、数据采集、数据处理、数据读取和存储、波形显示等功能。
本文结合虚拟仪器的设计,总结了设计与研究过程中遇到的难题并指出了解决方法。本文实现了虚拟仪器的高频虚拟实验室的的基础建设,使之成为现有实验教学的有益补充,从而大大提高实验教学的灵活性和适应性。
High frequency lab is the necessary institutional of experimental course in engineering colleges. It has some shortcomings, including a variety of apparatus, high cost, single use, etc. Virtual instrument can solve that difficult position and be beneficial to improve the whole educational condition and teaching level. Usually virtual instrument system is made up of data acquisition, data analysis and output display. Except some part of data acquisition is completed by hardware, the others are all realized by software. So the paper describes the design and realization of the high-frequency virtual lab instruments from hardware and software, using the DAQ PC—6251 of the NI company as the hardware, and graphic program language LabVIEW as the development software.
Based on the analysis and research of virtual instrument, the virtual instruments developing environment—LabVIEW and virtual instrument hardware systems , virtual high frequency amplifier、virtual AM and demodulation、virtual FM and frequency detection, virtual PM and phase detection are designed and simulated with the new programming idea and method under LabVIEW in this paper
Also in this paper ,virtual signal generation, virtual oscilloscope, virtual spectrum analyzer are.designed with labview, which can realize signal generation, data acquisition, data processing, data reading and storing, waveform display, and so on.
Combining with virtual instrument scientific design, the problems are summarized and solutions are pointed out at last. The basic construction of the high-frequency virtual lab instruments are realiseed in this paper ,which is the useful supplement to laboratory teaching and could greatly improve the flexibility and adaptability of laboratory teaching.
本文在分析与研究虚拟仪器、虚拟仪器开发环境—LabVlEW、虚拟仪器硬件系统的基础上,重点依据高频放大器、调幅及检波、调频及鉴频、调相及鉴相原理,利用LabVIEW编程语言,结合编程思路与方法,对虚拟高频放大器、虚拟调幅及检波器、虚拟调频及鉴频器、虚拟调相及鉴相器进行设计与仿真。
本文采用LabVIEW编程语言对虚拟信号发生器、虚拟示波器、虚拟频谱分析仪进行设计,其可以实现信号生成、数据采集、数据处理、数据读取和存储、波形显示等功能。
本文结合虚拟仪器的设计,总结了设计与研究过程中遇到的难题并指出了解决方法。本文实现了虚拟仪器的高频虚拟实验室的的基础建设,使之成为现有实验教学的有益补充,从而大大提高实验教学的灵活性和适应性。
High frequency lab is the necessary institutional of experimental course in engineering colleges. It has some shortcomings, including a variety of apparatus, high cost, single use, etc. Virtual instrument can solve that difficult position and be beneficial to improve the whole educational condition and teaching level. Usually virtual instrument system is made up of data acquisition, data analysis and output display. Except some part of data acquisition is completed by hardware, the others are all realized by software. So the paper describes the design and realization of the high-frequency virtual lab instruments from hardware and software, using the DAQ PC—6251 of the NI company as the hardware, and graphic program language LabVIEW as the development software.
Based on the analysis and research of virtual instrument, the virtual instruments developing environment—LabVIEW and virtual instrument hardware systems , virtual high frequency amplifier、virtual AM and demodulation、virtual FM and frequency detection, virtual PM and phase detection are designed and simulated with the new programming idea and method under LabVIEW in this paper
Also in this paper ,virtual signal generation, virtual oscilloscope, virtual spectrum analyzer are.designed with labview, which can realize signal generation, data acquisition, data processing, data reading and storing, waveform display, and so on.
Combining with virtual instrument scientific design, the problems are summarized and solutions are pointed out at last. The basic construction of the high-frequency virtual lab instruments are realiseed in this paper ,which is the useful supplement to laboratory teaching and could greatly improve the flexibility and adaptability of laboratory teaching.
引文
[1]侯国屏,王珅,叶齐鑫,唐祯安.基于Internet的远程虚拟实验室系统的开发[J];微型电脑应用,2002.17(8):36-38
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[3]李艳.基于LabVIEW的虚拟仪器的设计与应用;南京理工大学学位论文,2006.11
[4]张子刚.基于LabVIEW的虚拟实验仪器设计研究;长春理工大学学位论文,2007.05
[5]吴晓男.高校虚拟实验室的构建[J];国外电子测量技术,2006.25(12):37-39
[6]王俊峰,宋文爱等.基于LabVIEW的信号处理虚拟实验系统[J];国外电子测量技术,2006.25(10):71-73
[7]闫玲,方开翔等.基于LabVIEW的多功能数据采集与信号处理系统[J];江苏科技大学报(自然科学版),2006.20(3):50-57
[8]张毅刚.虚拟仪器技术介绍[J];国外电子测量技术,2006.25(6):1-6
[9]LabVIEW Programmer Reference Manual[M];National Instruments Co.1998
[10]唐贵基,刘玉秋.基于LabVIEW虚拟测试分析仪的信号分析功能设计[J];仪器仪表用户,2004.(1):24-26
[11]张爱平.LabVIEW在电子测量教学中的应用[J];国外电子测量技术,2004.(5):36-39
[12]侯国屏,王珅,叶齐鑫编著.LabVIEW7.1编程与虚拟仪器设计[M];北京清华大学出版社,2005.2.ISBN 7-302-10248-1
[13]董长虹,高志,余啸海.Matlab小波分析工具箱原理与应用[M];北京国防工业出版社,2004
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[15]National Instruments Corporation.Virtual instrumentation ineducation
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[17]戴鹏飞,王胜开,王格芳,马欣编著.测试工程与LabVIEW应用[M];电子工业出版社,2006.5.ISBN 7-121-02474-8
[18]曾兴雯,刘乃安,陈健编著.高频电路原理与分析[M];西安电子科技大学出版社, 2002.8.ISBN 7-5606-0229-0/TN.0069
[19]张义芳,冯健华编著.高频电子线路[M];哈尔滨工业大学出版社,2002.9.ISBN 7-5603-0824-4/TN.35
[20]高吉祥编著.高频电子线路[M]:电子工业出版社,2003.3.ISBN 7-5053-8565-8
[21]NI-DAQmx和传统NI-DAQ常见问题解答 www.ni.com/china
[22]虚拟仪器(白皮书)www.ni.com/china
[23]薛新红.虚拟仪器技术的发展现状和前景展望[J];现代测量与实验室管理,2006,(4):8-12
[24]LabVIEW User Manual:USA:National Instruments Corporation,1998.
[25]LabVIEW Function Manual:USA:National Instruments Corporation,1998.
[26]National Instruments Corporation.ActiveX and LabVIEW www.ni.com
[27]郝建勋.基于网络的高频虚拟实验室的设计与开发;大庆石油学院学位论文,2006.03
[28]梁志国等.调幅信号的数字化解调[J]:测控技术,2004(10)
[29]毛敏.新型直接数字合成式扫频仪的原理和研制[J];仪器仪表学报,2004(4)
[30]Titm Hayles.Developing Networked Date Acquisition Systrem with NI-DAQ National Instruments Application Note 1 18,www.ni.com
[31]National Instruments Corporation:ActiveX and LabVIEW www.ni.com
[32]最新总线技术在仪器控制与连接方面的远景;ni.com/china
[33]周传德,汤宝平,秦树人.PCI总线插卡及其在虚拟仪器中的应用[J];重庆大学学报,25(10)30-33
[34]陈书旺,胡爱华.虚拟仪器的类型及其发展情况[J];电脑学习,2007年.第4期.57-58
[35]许广华.虚拟仪器 第二十届中国(天津)2006 IT、网络、信息技术、电子、仪器仪表创新学术会议
[36]LabVIEW Application Builder User Guide;USA National Instruments Corporation,2003
[37]Jim Baker How to Call Win32 Dynamic Link L'braries(DLLs)form LabVIEW.National Instruments Application Note 088;WWW.ni.com
[2]许其贞.虚拟仪器的现状与展望[J];电子世界,2000年08期:5-6...
[3]李艳.基于LabVIEW的虚拟仪器的设计与应用;南京理工大学学位论文,2006.11
[4]张子刚.基于LabVIEW的虚拟实验仪器设计研究;长春理工大学学位论文,2007.05
[5]吴晓男.高校虚拟实验室的构建[J];国外电子测量技术,2006.25(12):37-39
[6]王俊峰,宋文爱等.基于LabVIEW的信号处理虚拟实验系统[J];国外电子测量技术,2006.25(10):71-73
[7]闫玲,方开翔等.基于LabVIEW的多功能数据采集与信号处理系统[J];江苏科技大学报(自然科学版),2006.20(3):50-57
[8]张毅刚.虚拟仪器技术介绍[J];国外电子测量技术,2006.25(6):1-6
[9]LabVIEW Programmer Reference Manual[M];National Instruments Co.1998
[10]唐贵基,刘玉秋.基于LabVIEW虚拟测试分析仪的信号分析功能设计[J];仪器仪表用户,2004.(1):24-26
[11]张爱平.LabVIEW在电子测量教学中的应用[J];国外电子测量技术,2004.(5):36-39
[12]侯国屏,王珅,叶齐鑫编著.LabVIEW7.1编程与虚拟仪器设计[M];北京清华大学出版社,2005.2.ISBN 7-302-10248-1
[13]董长虹,高志,余啸海.Matlab小波分析工具箱原理与应用[M];北京国防工业出版社,2004
[14]杨乐平,李海涛,赵勇等编著.LabVIEW高级程序设计[M];清华大学出版社,2003.4.ISRN 7-89494-010-0
[15]National Instruments Corporation.Virtual instrumentation ineducation
[16]杨乐平,李海涛,杨磊等编著.LabVIEW程序设计与应用(第2版)[M]:电子工业出版社,2005.5.ISBN 7-121-00588-3
[17]戴鹏飞,王胜开,王格芳,马欣编著.测试工程与LabVIEW应用[M];电子工业出版社,2006.5.ISBN 7-121-02474-8
[18]曾兴雯,刘乃安,陈健编著.高频电路原理与分析[M];西安电子科技大学出版社, 2002.8.ISBN 7-5606-0229-0/TN.0069
[19]张义芳,冯健华编著.高频电子线路[M];哈尔滨工业大学出版社,2002.9.ISBN 7-5603-0824-4/TN.35
[20]高吉祥编著.高频电子线路[M]:电子工业出版社,2003.3.ISBN 7-5053-8565-8
[21]NI-DAQmx和传统NI-DAQ常见问题解答 www.ni.com/china
[22]虚拟仪器(白皮书)www.ni.com/china
[23]薛新红.虚拟仪器技术的发展现状和前景展望[J];现代测量与实验室管理,2006,(4):8-12
[24]LabVIEW User Manual:USA:National Instruments Corporation,1998.
[25]LabVIEW Function Manual:USA:National Instruments Corporation,1998.
[26]National Instruments Corporation.ActiveX and LabVIEW www.ni.com
[27]郝建勋.基于网络的高频虚拟实验室的设计与开发;大庆石油学院学位论文,2006.03
[28]梁志国等.调幅信号的数字化解调[J]:测控技术,2004(10)
[29]毛敏.新型直接数字合成式扫频仪的原理和研制[J];仪器仪表学报,2004(4)
[30]Titm Hayles.Developing Networked Date Acquisition Systrem with NI-DAQ National Instruments Application Note 1 18,www.ni.com
[31]National Instruments Corporation:ActiveX and LabVIEW www.ni.com
[32]最新总线技术在仪器控制与连接方面的远景;ni.com/china
[33]周传德,汤宝平,秦树人.PCI总线插卡及其在虚拟仪器中的应用[J];重庆大学学报,25(10)30-33
[34]陈书旺,胡爱华.虚拟仪器的类型及其发展情况[J];电脑学习,2007年.第4期.57-58
[35]许广华.虚拟仪器 第二十届中国(天津)2006 IT、网络、信息技术、电子、仪器仪表创新学术会议
[36]LabVIEW Application Builder User Guide;USA National Instruments Corporation,2003
[37]Jim Baker How to Call Win32 Dynamic Link L'braries(DLLs)form LabVIEW.National Instruments Application Note 088;WWW.ni.com