The Simulation Training System Of Scanning Probe Microscope Based On Virtual Reality And Web

SPM (scanning probe microscope) is an international surface analytic instrument rising up in recent years, and the distinguishability can reach nanometer level even atom level But this instrument is so exact and expensive, and it is very difficult for most beginners. So, it is harder to generalize the technology of SPM and to train the personnel, and it increases the probability of the damnification by mis-handle. To resolve these problems, the subject empolders the simulation training system of scanning probe microscope for Nano Science and Technology Center of ICCAS.First of all, the paper expounds VR technology, VR technical application actuality and the trend of development on network, then based on each client demands and contrasting manifold relation techniques, adopts three-ply Browser/Server architecture, and constructs long-distance simulation training system of scanning probe microscope based on virtual reality and web. This paper opens out this system combining SPM technology with VR technology on network, analyses the characteristic of the long-distance simulation training system inside and outside and in being SPM training system , and for the first time brings forward the exploiture client end with Java3D in B/S structure at home. The system offers the mutral interface for the longdistance users, the construction and the display of dimensional virtual scene, the inter-operation and the range of the scene, and so on. And it solves bandwidth of network and favorable interoperability problems well in the long-distance training. The application of JavaSD leads the system present out spick-and-span visage. In addition, Java3D can only accomplish the regular geometry sculpting and can't accomplish the irregular geometry sculpting. To solve this flaw, a new way of sculpting the gyre-solid and changing-section-brace by approaching the solid with small slice is put forward. At the same time, rendering and third dimension disposing are settled in this paper. This technique expanses the functions of Java3d API in necessary, and possess value of Java3d API in use.With the development of VR technology and network mechanics of communication, the simulation training based on VR and the web conforms to new historical reference trend 'research area. The implementation of this system will give new exploitation idea and policy for every other long-distance simulation training system of our nation. The further study on this technique could got up to directing and assigning role for tele-education, simulation laboratory, virtual laboratory ect.