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LabVIEW - based virtual signal generator

Author: ChenYuQing
Tutor: ChenYong；XiJianJun
School: University of Electronic Science and Technology
Course: Software Engineering
Keywords: Virtual instrument LabVIEW Signal generator Data acquisition USB interface
CLC: TN741
Type: Master's thesis
Year: 2010
Downloads: 722
Quote: 4
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Abstract


Virtual instrument is simulated on a computer screen through the instrument software development platforms such as LabVIEW instrument panel and the corresponding function , and operation via mouse or keyboard instruments , computer data display , storage and analysis and processing , allowing users to operate a computer is like operating a real instrument . Virtual Instrument Test System , the PC becomes the instrument on behalf of the future direction of development of the test instruments . Virtual instrument \quality and reliable products and systems . The signal generator is experimental teaching , production practices and scientific research indispensable universal electronic measuring instruments , one of this project is the design and development of a LabVIEW-based virtual signal generator system . This paper first introduces the background of the development of the virtual signal generator , constitute virtual instrument software and hardware structure analysis , the work to be involved in the design of a virtual instrument system ; to EE1640C type on the basis of the above series the signal generator as a reference , structure and working principle of the signal generator . Then use LabVIEW to design a virtual multi-function signal generator applications to achieve the main function of EE1640C generate a signal , but also extends its waveform generation mode and frequency domain characteristics . Finally , the topic has designed a data acquisition card , USB serial communication , virtual signal output to the external device . The test results show that the developed virtual signal generator based on LabVIEW and USB interface to the normal operation of general electronic measurement system to meet the requirements of the signal generator . The entire system in the hardware and software aspects of further changes in order to achieve a wider range of measurement functions .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Frequency synthesizer technology,frequency synthesizer > Direct method
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