摘要
将自组电桥仪实验用于开放实验中不仅可提高学生的综合使用实验仪器及动手的能力,还可加深学生对不同模块理论知识的理解。实验中让学生根据实验仪自主选择实验模块,设计实验电路,确定实验方法,分析数据,获得结论。用非平衡电桥实现电子秤功能。对搭建的电路进行定标,称重;对同一物体应用成品电子秤称重并比较,给出测量结果。开放模式的实验教学设备利用率高、能提高学生综合应用知识的能力,有利于培养学生的实践和创新能力。
The experiment of Self-assembled bridge instrument is used in the open experiment,which can not only improve the students’comprehensive use of experimental instruments and their hands-on ability,but also deepen their understanding of the theoretical knowledge of different modules.In the experiment,students are allowed to independently select experimental modules,design experimental circuits,determine experimental methods,analyze data and obtain conclusions according to the experimental instrument.Realization of electronic scale function with unbalanced bridge.Scaling and weighing the built circuit;Weigh and compare the same object with finished electronic scales,and give the measurement results.The experimental teaching equipment with the open mode“improving students’ability to apply knowledge comprehensively”has the high utilization ratio,which is beneficial for training the students’practical and innovative ability.
作者
王婷
宋婷
冯金山
田俊红
WANG Ting;SONG Ting;FENG Jinshan;TIAN Junhong(School of Mathematics and Physics,Lanzhou Jiaotong University,Lanzhou 730070,China)
出处
《大学物理实验》
2020年第4期105-108,共4页
Physical Experiment of College
基金
兰州交通大学实验教改项目(2019045)。
关键词
开放实验
自组电桥实验仪
非平衡电桥
电子秤
open experiment
self-assembling bridge instrument
unbalanced bridge
electronic balance
