基于CCD成像系统的衍射法测金属线胀系数

Measurement of Linear Expansion Coefficient Based on the Diffraction of CCD Image Systems

CCD技术是现代光电技术的一个重要分支,其在非接触领域有着非常广泛的应用。在阐述光的衍射原理的基础上,将热学与光学的实验原理、仪器的综合利用,通过CCD成像系统实现衍射法测金属线胀系数。实验结果表明,通过CCD成像系统提高微小形变量的测量精度,可以实现金属线胀系数的非接触测量,且精度较高。

The experimental results show that non-contact measurement of linear expansion coefficient of the metal and high precision can be achieved by the measurement accuracy of small deformation through CCD imaging systems.