摘要
本文绘出了一种金属固体线膨胀系数的测量方法，即采用光纤位移传感器的方法（光纤微位移法）来测量固体的线膨胀系数．测量了黄铜的线胀系数，分别用逐差法和线性回归法处理了实验数据，并与标准值进行了比较．
The new method of measuring thermal expansion coefficient of solid state materlals isintroduced in this paper. A optical fiber displacement sensor has been used in our experiment tomeasure the thermal expansion coefficient of the copper metal bar. The differential method and linearregression method have been used to treat with the experimental data, respectively. Finally, themeasuring result is compared with the data given by reference[4].
关键词
光纤
位移
传感器
线膨胀系数
固体
热膨胀
optical fiber
displacement
sensor
thermal expansion coefficient
