CAJ | 학술논문

针对目前迈克耳孙干涉实验教学中干涉条纹目测计数存在较大误差的问题，采用连接数字存储示波器的快速响应光电二极管代替玻璃屏，测量并记录干涉条纹的变化过程．测量空气折射率的实验结果表明，该方法可以直接通过相位变化信息测量得到干涉条纹的变化数目，相应的计数精度可达0．1级条纹．
침대목전매극이손간섭실험교학중간섭조문목측계수존재교대오차적문제，채용련접수자존저시파기적쾌속향응광전이겁관대체파리병，측량병기록간섭조문적변화과정．측량공기절사솔적실험결과표명，해방법가이직접통과상위변화신식측량득도간섭조문적변화수목，상응적계수정도가체0．1급조문．
In current teaching experiment of Michelson interference , students are required to count the interference fringe number on the screen with naked eyes ,w hich unavoidably leads to a sig-nificant error .To solve this problem ,we replaced the conventional screen with fast photoelectric de-tector ,and recorded the light intensity changes at the center of the interference fringes with digital storage oscilloscope .When measuring the air refractive index ,we demonstrated that the phase chan-ges could be inferred from the light intensity changes of the interference fringe and the corresponding fringe counting accuracy was as high as 0 .1 .