光学精密工程2011，Vol.19Issue(7)：1480-1485,6.DOI:10.3788/OPE.20111907.1480
数字散斑相关法在变形测量中的应用
Application of digital speckle correlation method to deformation measurement
摘要
Abstract
To overcome the limitations of traditional deformation measurement methods and complete the comprehensive measurements of the general deformation and the various point displacements within a measurement scope in any time, the Digital Speckle Correlation Method(DSCM) was used in accurate deformation measurement. Firstly, by comparison with traditional methods, it summarized the advantages of the method in non-contact, high precision, simple and flexible operation, overall measuring and so on. And then the principles of the DSCM were elaborated on the five aspects, the relevant mathematical models were established and the corresponding measurement and analysis software XJTUDIC was developed. By using this software with the relevant hardware devices, a tensile deformation process was tested and obtained results were compared with that of traditional measurement method using an extensometer. Obtained results indicate that the error is within 0.2％, which fully validates that the method and corresponding software and hardware are reliability and feasibility and it provides an effective and reliable tool for the precise and comprehensive deformation measurement.关键词
数字散斑相关法/变形测量/XJTUDICKey words
Digital Speckle Correlation Method(DSCM)/ deformation measurement / XJTIDIC分类
机械制造引用本文复制引用
陈志新,梁晋,郭成..数字散斑相关法在变形测量中的应用[J].光学精密工程,2011,19(7):1480-1485,6.基金项目
国家自然科学基金资助项目(No.50975219) （No.50975219）
苏州市应用基础研究计划(工业部分)资助项目(No.SYG201014) （工业部分）
