摘要
将智能手机应用于金属杨氏模量的动态法测量中,利用Spectrum Analyzer软件分析金属试样振动时发出的声波频率,用内插法求出试样节点上的共振频率,进而计算出金属试样的杨氏模量,并将杨氏模量测量值与理论值作对比,进一步论证了本实验方案的可行性.
Smart phone was applied in the experiment of dynamic measurement of Young modulus of metal.Using the app of Spectrum Analyzer,the frequency of the sound emitted by a metal sample was analyzed,and the resonance frequency of the sample node was calculated by interpolation method.The obtained Young modulus was compared with the theoretical value to confirm the credibility of the experimental scheme.
出处
《物理实验》
2017年第12期41-44,共4页
Physics Experimentation
