一种测量颗粒对流速度的新方法  

A New Method for Measuring Convection Velocity of Granular Matter

作　　者：母应坤[1] 胡林[1] 孔维姝[1] 邓雄[1] 

机构地区：[1]贵州大学理学院物理系,贵阳550025

出　　处：《科技导报》2013年第26期57-59,共3页Science & Technology Review

基　　金：国家自然科学基金项目(11264006);贵州省基金项目(黔科合J字[2011]2099号);贵州省省长基金项目(黔省专合字2010-5号)

摘　　要：提出一种测量振动过程中颗粒对流速度的新方法——示踪子寻迹测速法。该方法可对粒子位置坐标进行精确识别,同时,利用其颜色属性、三角形最小形变度对未能直接识别的粒子加以辅助识别,实现了对运动粒子不同时刻空间参量的跟踪描述。运用图像处理软件ImageJ获取粒子位置坐标,具有处理速度快,便于修正的特点,与其他位置识别方法相比,ImageJ具有独特的优越性。A new method is introduced for measuring convection velocity of granule in the process of vibration, which is named seeking trails of tracer particles. The coordinates of particles can be accurately identified, and unmatched particles can be unidentified by use of color attribute assisted by minimum deformation degree of triangular, which realizes the tracking and description for moving particles in different moments and spaces. In terms of obtaining particle location coordinates, ImageJ has the characteristics of fast processing and easily amending. Moreover, it has the unique superiority compared with other identification methods.

关 键 词：粒子速度 示踪子 ImageJ软件 算法 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] O572.2[自动化与计算机技术—计算机科学与技术]