数字散斑相关技术中散斑颗粒尺寸大小对测量精度影响的研究  

The Influence of the Speckle Size in the Digital Speckle Correlation Technique on Measure Precision

作　　者：吴加权[1] 马琨[1] 李燕[1] 

机构地区：[1]昆明理工大学理学院,云南昆明650093

出　　处：《昆明理工大学学报（理工版）》2006年第5期121-124,共4页Journal of Kunming University of Science and Technology(Natural Science Edition)

基　　金：昆明理工大学校青年启动基金(项目编号:2006-25)

摘　　要：通过选取不同颗粒尺寸大小的散斑场针对不同距离,不同位移情况下进行了实验研究比较,给出了散斑颗粒尺寸大小对测量精度的影响.并以实验结果的相对误差为依据,为将数字散斑相关测试技术实际用于大型建筑工程安全检测时散斑场的人工制作提供一个可靠的实验参考依据.Different sizes of speckles under the conditions of different distances and displacements are investigated in this paper. The influence of the speckle size on measure precision is analyzed. Based on the relative errors of the experiments results , this paper comes up with a reliable reference framework for the future application of DSCM measurement in preparing speckle field in the safety detection of large construction projects.

关 键 词：数字散斑 散斑颗粒 精度 

分 类 号：TN247[电子电信—物理电子学]