Research Of Virtual Chemical Laboratory Of Titration Analysis Based On Mobile Terminal

The development of mobile terminal has promoted the information industry into a new era. With its unique and diverse ways of user communication, lightweight, easy to carry and readily accessible, mobile terminal not only expands the boundaries of human-computer interaction, but also cultivate users’new habits-be more inclined to use spare time, more willing to accept pieces of information. Meanwhile, along with the popularity of mobile terminal applications, we can break through the restrictions of time and space to exchange and acquiring resources during the education and the learning process, and make the ideal state of ubiquitous learning possible. While making it convenient for general educators and learners, it also makes the change for teaching model and learning patterns possible. How to make students quickly learn standard titration analysis operation and develop good experimental habits in limited time and under the limited teaching resources is a problem to be solved, and the development of mobile terminal provides a new way to think of it. The sensor and touch operation make the experimental operation more diverse. While arousing students’interest, diverse operations are closer to real experiments. Titration analysis operation is the most important part of the analytical chemical experiments. It needs precise and normative operation and has strict requirements to the operation of experimenters. So we choose it as a research object.Choosing the chemical titration analysis experiment as our research object, We use unity3D to develop virtual chemical laboratory based on mobile terminal. We build models for laboratory scene and experiment instruments by using 3ds Max, export the fbx format file, and accomplish the interaction by using Unity3D. We use NGUI plugin to accomplish the UI interface design and connect the zlimsX database by using PHP scripts. This paper solves a series of key problems of development of virtual chemical laboratory based on mobile terminal, including the design and implementation of the interactive mode, the design and implementation of UI, the design and implementation of various experimental parameters, acid-base titration curve drawing, data recording and database connection, simulation of experimental process and phenomena etc. Then, we export the APK installation file and conduct a running test on mobile phone and tablet computer, the result is ideal. This paper conducts a meaningful exploration on the virtual chemical laboratory titration analysis based on mobile terminal, and achieves a leap in virtual laboratory from PC to the mobile terminal.