Lamb Wave Ultrasonic Tomography for Edge Detecting of Material Loss in Isotropic Media

摘要：

　　,The edge of material loss is crucial for material loss evaluation.Lamb wave tomography and model-based edge detecting have been used in isotropic media.Time of flight and velocity of lamb wave are ultrasonic signal features to reconstruct the edge map of material loss.The correlation technique is employed to get the time of arrival more accurate.An ellipse model is used to represent the defects with apparent directional property,and edge detecting will be realized by it.The reconstructed map shows clearly that edge detecting method in this paper is efficient for material loss detection.

关键词： Material loss detection Lamb wave correlation technique ellipse model

作者: Hanhui Xu Chunguang Xu Lijiu Wang

作者单位: Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China;School of Mechanical E School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China

会议类型: 国际会议

会议名称: the Second International Conference on Frontiers of Manufacturing and Design Science(第二届制造与设计科学国际会议(ICFMD 2011))

会议地点: 台湾

会议语种:英文

页码: 201-205

在线出版日期: 2011-12-11（万方平台首次上网日期，不代表论文的发表时间）