CAJ | 학술논문

电子散斑干涉技术(ESPI)是光学测量的一种重要的方法,对ESPI条纹的信息提取是ESPI进行光学测量的关键步骤之一,本文在介绍电子散斑干涉条纹中心线法的基础上,开展了ESPI条纹图预处理和基于条纹细化算法的骨架线提取的研究,包括对细化的条纹进行修整、拟合,该方法可以实现条纹骨架的快速、准确的自动提取.设计了一套应力形变装置,运用电子散斑干涉条纹中心线法对试件表面的形变进行实际检测,得到测量结果.对结果进行了分析,实验测量值与实际相符.
전자산반간섭기술(ESPI)시광학측량적일충중요적방법,대ESPI조문적신식제취시ESPI진행광학측량적관건보취지일,본문재개소전자산반간섭조문중심선법적기출상,개전료ESPI조문도예처리화기우조문세화산법적골가선제취적연구,포괄대세화적조문진행수정、의합,해방법가이실현조문골가적쾌속、준학적자동제취.설계료일투응력형변장치,운용전자산반간섭조문중심선법대시건표면적형변진행실제검측,득도측량결과.대결과진행료분석,실험측량치여실제상부.
The electronic speckle pattern interferometry (ESPI) is one of the important optical measure-ment methods.The extracting information of the ESPI fringes is one of the key technologies during ES-PI application.A fringe center method for ESPI interferogram analysis and a method based on the fringe refinement algorithm are introduced.The thin skeletons are amending to be smooth.The method can automatically pick up the fringe skeletons.A measurement experiment by using this technique is used to detect and analyze the deformation of the sample.The result is in agreement with the actual situation.