虛擬模擬電子線路實(shí)驗(yàn)的研究與實(shí)現(xiàn)畢業(yè)論(已修改)
2025-06-23 04:32 本頁(yè)面
【正文】 本科畢業(yè)論文（設(shè)計(jì)） 論文題目：虛擬模擬電子線路實(shí)驗(yàn)的研究與實(shí)現(xiàn) 學(xué) 號(hào)： 學(xué)生姓名： 指導(dǎo)教師： 所在學(xué)院： 所學(xué)專業(yè)： 2021 年 5 月 31 日 虛擬模擬電子線路實(shí)驗(yàn)的研究與實(shí)現(xiàn) I 摘 要 隨著時(shí)代的發(fā)展，科技的進(jìn)步，已經(jīng)進(jìn)入了虛擬儀器的時(shí)代。 虛擬儀器 是電 子技術(shù)與計(jì)算機(jī)技術(shù)發(fā)展的產(chǎn)物，它將逐步取代傳統(tǒng)電子儀器 。 虛擬儀器作為新 興的儀器儀表，是電子技術(shù)與計(jì)算機(jī)技術(shù)發(fā)展的產(chǎn)物，應(yīng)用十分廣泛。開發(fā)模擬電子線路實(shí)驗(yàn)虛擬儀器是把虛擬儀器推廣和應(yīng)用到實(shí)驗(yàn)教學(xué)過(guò)程中的嘗試。介紹了虛擬儀器的概念及其系統(tǒng)結(jié)構(gòu)，給出了國(guó)內(nèi)外研究現(xiàn)狀。闡述了虛擬儀器系統(tǒng)的工作原理。討論數(shù)據(jù)采集卡性能指標(biāo)和虛擬儀器波形采集、波形輸出及其關(guān)鍵技術(shù)。利用模擬電子線路虛擬儀器，通過(guò)使用 Lab VIEW環(huán)境開發(fā)的低頻放大器、高頻放大器、調(diào)頻及鑒頻、調(diào)相及鑒相 5 個(gè)實(shí)驗(yàn)項(xiàng)目虛擬儀器研究成果。提出了直接鑒頻、直接鑒相和間接調(diào)相的新方法，并將它們應(yīng)用于調(diào)相及鑒相虛擬儀器，實(shí)驗(yàn)表明，這 些方法易于實(shí)現(xiàn)，得到了滿意的結(jié)果。 關(guān)鍵詞 ：虛擬儀器；數(shù)據(jù)采集卡；波形采集 虛擬模擬電子線路實(shí)驗(yàn)的研究與實(shí)現(xiàn) II Abstract With the development of the times, the progress of science and technology, has entered the era of virtual instruments. Virtual instrument is the product of the development of electronic technology and puter technology。 it will gradually replace the traditional electronic instruments. As a new instrument, virtual instrument is the product of the development of electronic technology and puter technology, and it is widely used in the application of virtual instrument. The development of analog electronic circuit virtual instrument is an attempt to promote and apply the virtual instrument to the experiment teaching process. This paper introduces the concept of virtual instrument and its system structure, and presents the research status at home and abroad. This paper expounds the working principle of virtual instrument system, and discusses the performance index of data acquisition card and virtual instrument waveform acquisition, waveform output and its key technology. By using LabVIEW development environment of low frequency amplifier, high frequency amplifier, a frequency modulation and demodulation, modulation and demodulation phase five experimental project of virtual instrument research results, using the analog electronic circuit virtual instrument. Direct frequency discriminator is proposed. New method of direct demodulating phase and indirect phase modulation, and their application in phase modulation and demodulation phase virtual instrument. The experimental results show that, the method is easy to implement, the satisfactory results are obtained. Keywords： Virtual Instruments； Data acquisition card； Waveform Acquisition 虛擬模擬電子線路實(shí)驗(yàn)的研究與實(shí)現(xiàn) III 目 錄 摘 要 ...................................................... I Abstract ..................................................... II 目 錄 .................................................... III 1 緒論 ........................................................ 1 虛擬儀器研究的背景及意義 ....................................... 1 虛擬儀器的研究概況 ............................................. 1 2 虛擬儀器結(jié)構(gòu)及工作原理 ........................................ 2 虛擬儀器的概念 ................................................ 2 虛擬儀器 的硬件系統(tǒng)結(jié)構(gòu) ......................................... 2 虛擬儀器的工作原理 ............................................. 3 3 虛擬儀器波形采集和波形輸出 .................................... 5
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