| In order to meet the requirements of informal education,the simulation system of Bi-prism interference experiment is developed.The system can promote the deep integration of experimental teaching and information technology.On the basis of literature review and laboratory field investigation,the system integrates digital fusion knowledge,and assists the matting of real scenes and instruments.The system has the functions of demonstration learning,instrument operation,phenomenon observation,data measurement and result calculation.The simulation system is divided into two parts: demonstration learning and operation measurement,including eight modules: principle description,interference effect demonstration,experimental content,experimental instruments,experimental steps,experimental instrument adjustment,experimental data measurement and experimental data calculation.The operation and data acquisition of each link in the simulation system have rationality detection,and can give the corresponding prompt information.The adaptive image size display model with image center alignment is adopted in the simulation system.Only when the image display frame is placed and its center is aligned with the area used to display the image in the interface,the system will display the image center adaptively under the premise of ensuring the image length width ratio,which improves the programming efficiency.The system realizes the interaction of rectangular area centered on the instrument center and improves the convenience of user operation.The simulation system breaks through three technical difficulties.First,the color realistic effect of the experimental phenomenon is well simulated by coloring the grayscale image.The simulation system breaks through three technical difficulties.Second,the color realistic effect of the experimental phenomenon is well simulated by coloring the grayscale image.The application of simulation system in teaching realizes the interaction of image interface in the process of experiment,which makes the observation and adjustment of experimental phenomena clear at a glance,and effectively enhances the intuitiveness of teaching.The simulation system realizes the window observation,which can avoid the health risks caused by long-term use of visual aids in darkroom environment,and reduce the harm of darkroom operation.The simulation system realizes the extension of time and space,students can be free from the limitation of time and place,and can be immersive in the experiment preparation,operation practice and experimental measurement at any time,which can effectively improve the experimental efficiency.The organic combination of simulation experiment and real experiment,complementary,diversified teaching mode switching,is conducive to stimulate students’ interest in experiment and enrich experimental experience. |