Research And Design Of Electronic Experiment System Based On Virtual Instrument

Higher vocational college students in determining the target with the common colleges and universities is a bit different, higher vocational college is the cul Livation of adequate theory, practice of high skill, ability of the operating personnel。Therefore, the higher vocational colleges, experiment, practice, practice teaching proportion in the teaching plan will be greatly improved, especially for higher vocational college professional speaking, experiment, practice teaching is the link between theory teaching and practice activities。 All universities and colleges have paid attention to improving the quality of teaching of all courses, especially in experiment teaching, training and engineering courses。To improve the innovation ability of students, training students in creative thinking, reduce the laboratory experiment equipment investment, construction and Reform in experiment, training goal, Therefore, if the virtual instrument technology and platform is introduced into the experiment, laboratory construction, design a set of electronic:experimental teaching system based on virtual instrument, serve experiment, practice teaching work, especially in the focus of vocational training the practical ability of college experiment, practice teaching activity, this reform is particularly important, also is the technological development and laboratory virtual instrument construction integration prospects。In the part of the virtual instrument, the core part is the instrument equipment. So, this is the central link of graduation design. In the design process, first of all according to the specific requirements and targets, refinement of each unit to realize the function and contains the module, and then the design idea of independent, modular, the units of each module detailed design, respectively. Combined with the research of the opening, according to the current higher vocational colleges, training project and permanent experimental requirements of the experimental apparatus, in this paper the design and implementation of the electronic experiment, training the commonly used teaching instrument, including virtual amplitude modulation and demodulation instrument, virtual spectrum analyzer, virtual signal generator, double channel oscilloscope, virtual Butterworth filter, Finally, in order to make the whole teaching embodies the perfect and systematic, complete function, each instrument is designed as a stand-alone VI integrated in a unified interface of virtual instrument and electronics experimental teaching system. At th. At the end of the paper, introduces the "method of remote panel released" to realize resource sharing in China, with the rapid development of modern science and technology and the network technology, the Internet resource sharing is the virtual instrument technology and the inevitable trend of future development, broad prospects.