摘要
针对拉伸法测钢丝的弹性模量实验教学中容易出现的两个问题:"光杠杆放大法的角度关系"和"快速调节望远镜观察刻度尺的像"进行研究,提出了教学改进方法.
This paper elaborates and explains two questions that exist in the experiment item of measuring e- lastic modulus by stretching method, which include angle relation in light lever magnifying method and adjusting telescope quickly to observe image of scale ruler.
出处
《洛阳师范学院学报》
2013年第2期59-60,共2页
Journal of Luoyang Normal University
关键词
拉伸法
弹性模量
光杠杆法
stretching method
elastic modulus
light lever magnifying method
