A Case Study Of The Application Of Single Chip Microcomputer Technology In High School Physics Electromagnetism Experiment

Physics experiment is an important part of high school physics teaching content,It is an important means to assist students in understanding knowledge,and it is an important method to improve students' interest in learning physics.At present,in most high school physics experiment teaching in my country,due to cost constraints,the electromagnetic instruments used often have shortcomings such as low accuracy,inconvenient operation,and unobvious physical phenomena,which lead to low interest in learning and teaching.Disadvantages such as poor results.This thesis introduces the single-chip technology in the traditional high school physics experiment teaching of electromagnetics to improve the measurement accuracy,optimize the operation process,highlight the physical phenomenon,stimulate students' interest,and enhance the students' core literacy of physics.This thesis comprehensively utilizes literature analysis,questionnaire survey,and case analysis to conduct a case study on the application of single-chip technology to high school physics electromagnetic experiment teaching,and innovatively proposes six principles and three methods for the application of single-chip technology to high school physics electromagnetics.The six principles are scientific principle,intuitive principle,safety principle,accuracy principle,economy principle and operation convenience principle.The three methods are substitution method,innovation method and transplantation method.Based on the above principles and methods,this thesis has carefully designed three teaching cases for measuring high-value resistance,measuring the volt-ampere characteristics of non-linear components,and measuring solenoid magnetic field.In the case of "high-value resistance measurement",we made an intelligent time-control switch using single-chip microcomputers and relays,which greatly improved the accuracy of the experiment.In the case of "non-linear component volt-ampere characteristics measurement",digital ammeters and voltmeters are made using single-chip microcomputers and high-precision analog-to-digital converters,which eliminates the experimental errors caused by internal and external methods in traditional physical experiments.In the case of "solenoid magnetic field measurement",a Tesla meter was made using single-chip microcomputers and Hall sensors,so that students could quantitatively measure the magnetic induction intensity.Practice has proved that after using the teaching cases designed in this research,the experimental results are very good,and the students' interest in learning has been significantly improved.It is hoped that the research work of this thesis can provide some reference for first-line physics teachers in physics experiment teaching.