分光计测谱线波长实验中光栅倾斜对结果的影响  

Influence of the Inclination of Optical Grating on the Results in the Experiment of Measuring the Wavelength of the Spectral Line with Spectrometer

作　　者：张文彪 梁枫 杨晓明 钟兰花 ZHANG Wenbiao;LIANG Feng;YANG Xiaoming;ZHONG Lanhua(School of Physical Science and Technology,Lingnan Normal University,Zhanjiang,Guangdong 524048;Zhanjiang NO.17 Middle School,Zhanjiang,Guangdong 524044)

机构地区：[1]岭南师范学院物理科学与技术学院,广东湛江524048 [2]湛江市第十七中学,广东湛江524044

出　　处：《物理通报》2024年第10期103-107,共5页Physics Bulletin

基　　金：2022岭南师范学院教学质量与教学改革工程项目——应用物理学一流专业.

摘　　要：实验研究了在用分光计测谱线波长实验中光栅位置倾斜对波长测量结果的影响.采用控制变量法,使光栅在立体空间的3个坐标轴上分别旋转一定的角度,测量各种情况下谱线的波长,并计算误差.结果表明,如果采用光栅常数较大的光栅来测量级次低的谱线,光栅调整偏差引起的误差非常小.而在具体方位上,光栅绕中心转轴方向的旋转比另两个方向的旋转引起的测量误差更大.The influence of the inclination of the optical grating on results is studied experimentally for the experiment of measuring the wavelength of the sPectral line with the sPectrometer.By the control variate technique,the optical grating is supposed to rotate respectively around the three coordinates of the space.We measured the wavelength of the spectral line,and calculated the error on differen t rotation angles.Results show that the error introducing by the deviation of the optical grating will be tiny on the condition of measuring the low order spectral line using an optical grating with a relatively big grating constant.When the optical grating rotates around the central pivot,the error will be larger than the cases rotating around the other two orien tations.

关 键 词：分光计 光栅 波长 误差 

分 类 号：TH744.1[机械工程—光学工程]