摘要
针对实验教材和文献中两虚光源位置被近似为与狭缝光源共面,会对实验结果精度和稳定性产生较大影响的问题,通过两虚光源位置形成的光路图,给出了虚光源与双棱镜间距的精确解析式,并利用实验数据讨论了狭缝光源到光屏在较大范围内（800~1900 mm）变化时光源波长的精度和稳定性。此外,给出了以往常用的近似公式的修正形式。
In experimental teaching materials and literatures, for the issue that the virtual light source positions ap- proximated by a coplanar with the slit light source has a greater impact on the accuracy and stability of the experi- mental result. This paper through optical path formed by the light source positions has given the exact analytical formula of the distance of virtual light source and double prism, and accuracy and stability of the light source wavelength were discussed using the experimental data on this condition the distance of slit light source to the light screen within a wide range （800- 1900 mm）. In addition, the correction form of previous commonly used approxi- mate formula was given.
出处
《延安大学学报（自然科学版）》
2016年第4期39-41,共3页
Journal of Yan'an University：Natural Science Edition
基金
安徽理工大学博士基金项目
关键词
双棱镜干涉
近似法
精确解析式
double prism interference
approximation method
exact analytical formula
