The system consisting of optical fiber displacement sensor and solid linear expansion coefficient apparatus, is used to measure the linear expansion coefficient of metal.
将反射式光纤位移传感器应用于固体线膨胀系数测定仪，可以较精确地测定金属线胀系数。
2
The theory of speckle interferometry is applied to study the measurement of the in-plane displacement of solid surface by laser Doppler effect.
本文采用散斑干涉理论研究固体表面面内位移测量的激光多普勒效应方法。
3
A certain contributions will be made to surveying of deep displacement of solid simulating test.