摘要
在光杠杆和光反射原理的基础上,利用激光器和反射镜,设计制作多级光杠杆装置,通过反射镜的多级反射将激光打在刻度尺上,从而得到钢丝长度的微小变化值。改进后仪器测量相对误差小,数据精密度更高。
AccordingAccording toto thethe principleprinciple ofof opticaloptical leverlever andand lightlight reflreflex,ex,we researched and developed a multi-reflex optical level devicewe researched and developed a multi-reflex optical level device made with laser and reflector,with multi-reflection of the reflector,made with laser and reflector,with multi-reflection of the reflector,laser was reflected to the graduated scale,the small variation of thelaser was reflected to the graduated scale,the small variation of the steel wire’s length can be obtained.The improved device is scientificsteel wire’s length can be obtained.The improved device is scientific and has lower relative error and high precision.and has lower relative error and high precision.
作者
李荫
柳叶
李春江
张雨辰
刘源会
LI Yin;LIU Ye;LI Chunjiang;ZHANG Yuchen;LIU Yuanhui
出处
《中国教育技术装备》
2021年第22期113-114,123,共3页
China Educational Technology & Equipment
关键词
大学物理实验
光杠杆
杨氏模量
激光器
反射镜
实验装置
college physics experiments
optical lever
Young’s Mo-dulus
laser device
reflector
experimental devicedulus
laser device
reflector
experimental device
