本文選題：虛擬儀器　切入點：虛擬示波器　出處：《湖南師范大學》2014年碩士論文　論文類型：學位論文

【摘要】：實驗教學在高等工科教育中起著相當重要的作用,尤其是電工電子等實踐性很強的專業(yè)。在目前大學擴招的形式下,高校實驗室教學中需要大量的各種測試儀器。而實驗儀器基金投資金額巨大,設備技術更新快,儀器維護困難,導致很多高校實驗室測試儀器緊缺。虛擬儀器技術是計算機技術與電子儀器相結(jié)合而產(chǎn)生的一種新的儀器模式。這種儀器模式的產(chǎn)生不但為測量領域帶來了革命性的創(chuàng)新,同時,基于其優(yōu)越的性價比,也越來越被高校實驗室所青睞。將虛擬儀器應用于高校實驗室可大幅度降低實驗室改造、建設和維護的資金、時間和空間成本,提高使用效率；能為學生提供更多、更新、更好的高檔低價儀器；通過軟件的改進和完善,可以不斷地擴充實驗內(nèi)容,改變并提高實驗手段,提高實驗教學質(zhì)量。 本文介紹了虛擬儀器技術在高校電工電子實驗室建設和實驗教學中的應用意義,分析了基于LabVIEW的虛擬示波器、虛擬信號發(fā)生器、虛擬數(shù)字電路實驗教學平臺的軟件設計過程以及調(diào)試結(jié)果。虛擬示波器、虛擬函數(shù)信號發(fā)生器系統(tǒng)的設計,主要闡述了示波器和函數(shù)信號發(fā)生器的硬件組成,分析了虛擬示波器、虛擬函數(shù)信號發(fā)生器的模塊組成和各模塊的軟件程序設計,并對各模塊的程序進行調(diào)試,分析其運行結(jié)果；虛擬數(shù)字電路實驗教學平臺系統(tǒng)主要包括人機對話界面的設計和四個實驗項目的軟件設計,主要內(nèi)容包括3線-8線優(yōu)先編碼器、全加器、JK觸發(fā)器、BCD—七段顯示譯碼器的硬件電路設計分析以及四個實驗電路的軟件程序設計過程,同時給出了四個實驗電路的測試結(jié)果。 虛擬儀器應用于高校實驗教學,目前處于探索開發(fā)階段,但其顯著的經(jīng)濟性和實用性己顯示其巨大的優(yōu)勢和潛力。隨著虛擬儀器的產(chǎn)生和發(fā)展,將帶來新型實驗方式的產(chǎn)生,推動教育方式的重大轉(zhuǎn)變。
[Abstract]:Experimental teaching plays a very important role in higher engineering education, especially in practical majors such as electrician and electronics. A large number of testing instruments are required in laboratory teaching in colleges and universities. However, the fund of experimental instruments has a huge investment amount, the equipment technology is updated quickly, and the maintenance of the instruments is difficult. Virtual instrument technology is a new instrument mode which is combined with computer technology and electronic instrument. This kind of instrument mode not only brings revolutionary innovation to the field of measurement, but also leads to the shortage of testing instruments in many colleges and universities. At the same time, based on its superior performance-price ratio, it is more and more popular in university laboratories. The application of virtual instruments in university laboratories can greatly reduce the capital, time and space cost of laboratory transformation, construction and maintenance, and improve the efficiency of use. It can provide students with more, newer and better high-grade low-cost instruments. Through the improvement and perfection of software, the content of experiment can be continuously expanded, the means of experiment can be changed and improved, and the quality of experimental teaching can be improved. This paper introduces the application significance of virtual instrument technology in the construction of electrician and electronic laboratory in colleges and universities, and analyzes the virtual oscilloscope and virtual signal generator based on LabVIEW. The software design process and debugging result of virtual digital circuit experiment teaching platform. The design of virtual oscilloscope and virtual function signal generator system, the hardware composition of oscilloscope and function signal generator are expounded. The composition of the virtual oscilloscope, the module of the virtual function signal generator and the software program design of each module are analyzed. The program of each module is debugged and the running result is analyzed. The virtual digital circuit experimental teaching platform system mainly includes the design of man-machine dialogue interface and the software design of four experimental items. The main contents include 3-wire -8-line priority encoder. The hardware circuit design of the full adder JK flip-flop and BCD-7 segment display decoder and the software program design process of the four experimental circuits are analyzed. The test results of the four experimental circuits are also given. The application of virtual instrument in experimental teaching in colleges and universities is at present in the stage of exploration and development, but its remarkable economy and practicability have shown its great advantage and potential. With the emergence and development of virtual instrument, it will bring about the production of new experimental methods. To promote a major change in the way of education.
【學位授予單位】：湖南師范大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM930.2

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本文編號：1638746