非线型固体杨氏模量测量

摘要

本实验利用时差法测得超声波在非线型固体介质中纵波的传播速度,根据待测物体的密度,从而计算出非线型固体物质的杨氏模量.该实验的测量原理简单,方法直观可行,测量结果可靠.%The transit-time measurement was ultrasonic propagation velocity of longitudinal waves in the nonlinear solid media. This paper calculates the density of the tested object and Young's modulus of nonlinear solid materials. The measurement principle is simple, intuitive and feasible, and the measurement results are reliable.