应变式传感器对测定杨氏模量的应用研究

Application of Strain Gauge Sensor in Young Modulus Measurement

杨氏模量的测定是大学物理实验中一个基本实验,文章采用应变式传感器测量的方法,通过应变式传感器放大器将非电学量的测量转化为电学量的测量,能够精确测量杨氏模量,实验数据可以自动化采集,并且可以确定屈服点。实验原理与方法涉及力学、电学的使用与测量,经典力学实验和现代测量技术相结合,可作为综合性实验在教学中使用。

Measuring Young modulus is a basic experiment in university physics experiments. This article uses the strain gauge sensor to measure Young modulus, translates the measure of non-electric quantity into the measure of electric quantity through the amplifier of strain gauge. The data of experiment can be collected automatically and the result of the experiment is precise;furthermore the yield point can be made certain. The principle and method of the experiment come down to the mechanics and electricity, combine the classic experiment and measure technique in modern time, so this method can be used as synthetic experiment in teaching.