Title :
Small surface crack size identification based on ultrasonic energy reflection and refraction
Author :
Wang, Lihua ; Zhang, Yonghong
Author_Institution :
Sch. of Inf. & Autom. Eng., Nanjing Univ. of Inf. Sci. & Technol., Nanjing
Abstract :
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.
Keywords :
surface cracks; ultrasonic materials testing; ultrasonic reflection; ultrasonic refraction; energy refraction; pulse echo; small surface crack size identification; solid-solid interface; time-of-flight diffraction technique; ultrasonic energy reflection; Aerospace engineering; Automation; Diffraction; Inspection; Power engineering and energy; Probes; Reflection; Surface cracks; Surface waves; Transducers; Energy reflection; Pulse echo; Refraction; Time of flight diffraction;
Conference_Titel :
Information and Automation, 2008. ICIA 2008. International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-2183-1
Electronic_ISBN :
978-1-4244-2184-8
DOI :
10.1109/ICINFA.2008.4608211
