摘要
利用近距二次反射法测量金属丝杨氏模量,把横向镜尺距离转化为纵向垂直距离。光杠杆镜面与平面镜间的二次反射增加了光程,并且有效地提高了光杠杆的放大倍数。实验结果表明:改进后的杨氏模量测量装置提高了实验测量精度,节省了仪器占用空间。
By using the double reflection of near distance,we measure the young modulus of metal wire,and turn the lateral mirror distance into the longitudinal vertical distance.The optical distance and the magnification of optical lever are improved via the optical lever mirror and the double reflection of flat mirror.The experimental results indicate that the measurement accuracy can be enhanced by employing the improved measuring equipment of young modulus.And the instrument space can also be effectively saved in experiment.
作者
胡训美
张波
HU Xunmei;ZHANG Bo(The Experimental Center of West Anhui University, Lu'an 237012, China)
出处
《皖西学院学报》
2020年第2期76-79,共4页
Journal of West Anhui University
基金
安徽省高校优秀人才支持计划项目(gxyq2019072)
安徽省高等学校省级质量工程项目(2018zhkt120、2018jyxm1162)
皖西学院质量工程项目(wxxy2017009)。
关键词
杨氏模量
光杠杆
近距
两次反射
Young modulus
optional lever
near distance
double reflection
