结合边缘跟踪的数字散斑相关方法在薄板拉伸试验中的应用

2010 Second International Workshop on Education Technology and Computer Science Pub Date : 2010-03-06 DOI:10.1109/ETCS.2010.101

Zhou Guofeng, Li Xiaoxing

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引用次数: 1

摘要

提出了一种基于数字散斑相关的金属薄板拉伸检测方法。根据试件的拉伸变形，采用标准化协方差相关公式。并结合边缘检测技术，提出了一种以样品为标定对象的标定方法。为了提高关联搜索的准确率和率，采用边缘跟踪测量结果作为关联搜索的初始值。并通过硅胶拉伸试验验证了该方法的可行性。

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Application of Digital Speckle Correlation Method Combined with Edge Tracking in Sheet Tensile Test

A novel detection method based on digital speckle correlation is proposed for the tensile test of sheet metal. Standardized covariance correlation formula is adapted according to the specimen’s tensile deformation. Also a new calibration method employing specimen as the calibrate object is presented combination with edge detection techniques. Purposing to improve the accuracy and rates of correlation search, the edge tracking measure results are adopted as the initial value of correlation search. And the feasibility of this set of method is proved by silica gel tensile tests.

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来源期刊

2010 Second International Workshop on Education Technology and Computer Science

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