The Research Of Virtual Experiment On Electric Circuit

Experiment teaching has been playing an increasingly important role in high education. It's a key measure to improve the students' ability. Virtual Laboratory appears with the development of computer technique and Virtual Instrument technique. As an essential and beneficial supplement to the traditional experiment, virtual experiments not only save a lot of education funds, but also extend the experiments in time and space effectively. It has the vast applied foreground in the education and research realm.Virtual Laboratory is a new development direction of the experiment teaching as well as an active research topic recently. Therefore, the development of the virtual laboratory of network is very necessary.This paper is based on virtual experiments theory, and through analysis of the entired system, the system will be divided into two sections: the experimental front interface, background simulation platform. At the same time, it was based on five current virtual experiment software and approaches and made a comparision between them, selected ActiveX as the programming method to achieve to control an apparatus in the front panel, developed the relevent virtual apparatus in the VB platform, and the main programming platform using VC in the application of these controls, so that these controls embedded in the corresponding VC platform. For the simulation platform, using relevant compiler theory of computer science and the modified nodal analysis in the principle of network nodes to analyze the netlist document generated by front panel in order to form mathematics matrix. Furthermore, it uses the powerful matrix function in the Matlab platform to implement the calculating capability and improve the speed and accuracy...