Web-based Virtual Experimental Research And Development Practice

On the issue of the weak of the experimental teaching about the distance learning system, the article conducted researches and development practice about the network-based virtual experiments. Research and analysis of various theoretical and the development methodology, made a comparison and analysis. And at last, draw a proven method. And we use the virtual reality technology , flash and so on paper summarizing research ideas and methods, designed and achieved a suitable Virtual laboratory system for Distance learning, proved the ideas.First research on the theoretical basis about the virtual experiment. Then examined the application of virtual reality in education. Particularly summed up in the application of virtual experiments. And analysis the advantages and disadvantages. Chapter Ⅲ detailed analysis of the structure and the development of technologies. Identified VRML and JAVA integration methods.Chapter Ⅳ analysis the needs and then give a design principles. The final chapter given the specific design and development methodology. And the key code.Firstly modeling experiments using VRML, and then derived into a WRL. Secondly revised and improved it by a VRML editor. In fact, we can use VRML node and its expansion node to a complete the basic experimental development, only when it cannot achieve the demand, we use JAVA together to help the development.This experiment has strong progressiveness and can be used in reality. And can be used cross-platform, so it is valuable.