摘要
用分光计测量棱镜角的实验中,测量时当某个游标经过0度刻度线后,测量数据必须要根据实际情况而作出正确的修正.用自准直法测棱镜角,放置三棱镜时锁紧载物台,使之连动游标一起转动,调节游标盘,使两游标的中心连线与望远镜光轴正交;放置三棱镜后使三棱镜的顶角对准望远镜并使棱镜角的中垂线与望远镜光轴平行.这样两个游标在测量过程中都不会越过0刻度线,不需要对读数进行修正.
In the spectrometer prism angle experiment,it is necessary to revise a measurement data when a vernier surpasses 0 degrees mark.Loading deck should rotate round vernier in measuring a triangular prism,and the vernier should be regulated to make the central axis between 2 venires be in the same direction with the axis of telescope.The top angle of triangular prism should bring the telescope into focus to make the middle axis be in parallel with the axis of telescope.Accordingly,the two venires don＇t surpass 0 degrees mark without revising the numerical reading.
出处
《宜宾学院学报》
2010年第6期48-49,共2页
Journal of Yibin University
关键词
分光计
修正
读数
spectrometer
revision
numerical reading
