摘要
通过对简支梁受力前后的双曝光全息图进行再现,利用透过全息图的条纹解释办法,分别用目测和数字图像处理办法测量物面上干涉条纹间距,从而得出简支梁的挠度;再利用最小二乘法求出被测物件的弹性模量。
The author reproduces double - exposure hologram of simple beam before and after stress, measures interference fringes spacing of objects＇ surface through visual measuring and digital image processing by the stripe explanation through the hologram and succeeds in obtaining simple beam deflection and Young＇ s modulus of the objects using least - square method.
出处
《大学物理实验》
2009年第1期69-74,共6页
Physical Experiment of College
基金
贵州省科学技术基金项目
黔科合J字(2007)2005
关键词
干涉条纹
条纹间距
弹性模量
简支梁
interference fringe
distance of fringe
Young＇ s modulus
simple beam
