Small Surface Crack Size Identification Based on Ultrasonic Energy Reflection and Refraction

摘要：

The small surface crack size estimation based on ultrasonic energy reflection and refraction technique has been studied in order to overcome the pulse echo and time of flight diffraction technique limitation.The model of reflection and refraction at solid-solid interface was deduced,and then the crack size by energy reflection changing was also studied. Experimental results are used to demonstrate the advantage of the proposed method.

关键词： Pulse echo Time of flight diffraction Energy reflection Refraction.

作者: Lihua Wang Yonghong Zhang

作者单位: School of Information and Automation Engineering Nanjing University of Information Science and Techn Department of Mechanical Engineering, University of Alberta Edmonton,Alberta T6G 2G8,Canada

会议类型: 国际会议

会议名称: 2008 IEEE International Conference on Onformation and Automation(IEEE 信息与自动化国际会议)

会议地点: 张家界

会议语种:英文

页码: 1348-1352

在线出版日期: 2008-06-20（万方平台首次上网日期，不代表论文的发表时间）