动力学方法测定物体弹性模量的研究  

STUDY ON MEASURING THE ELASTIC MODULUS OF MATERCAL BY DYMAMICS METHOD

作　　者：张泽南[1] 

机构地区：[1]浙江工业大学理学院,杭州310014

出　　处：《大学物理实验》2002年第2期1-3,共3页Physical Experiment of College

摘　　要：针对学生实验中的常见问题 :用振幅法确定共振频率受“次极大”干扰 ,提出测定共振频率的另一种方法 ,即相位法。在实际操作时将两者结合使用 ,能取得更好的实验结果。There are some frequent questions,just as being disturbed by hypo-maximum,when the frequency of resonance is confirmed by the way of amplitade.The paper puts forward the method of fixing on the freguecy of resonance,namely the method of phase.In measurement the better experiment outcome can be acquired by combining the two ways.

关 键 词：弹性模量 共振动频率 振幅法 相位法 

分 类 号：O329.1[理学—一般力学与力学基础]