Abstract
This paper introduced the design of a portable ultrasonic TOFD imaging and detecting system, and developed the hardware and application software based on embedded system. We accomplished multi-channel ultrasonic transmission and acquisition, real time A-scan signal or TOFD image display, ultrasonic data storage and analysis of large capacity and automatic quantitative calculation of cracks in this system. This system offered rapid speed and high accuracy that could be used to locate and size cracks in both weld joint detection and field structure examination.
Publisher
Trans Tech Publications, Ltd.
Reference7 articles.
1. Le Zhou and Zhiwen Zhang: Nondestructive testing and its new technology. Journal of Chongqing Institute of Technology, Vol. 20 No. 8 (2006), pp.46-48 (In Chinese).
2. G. Baskaran, Krishnan Balasubramaniam and C. Lakshmana Rao: Shear-wave time of flight diffraction (S-TOFD) technique. NDT&E International, Vol. 39 No. 6 (2006), pp.458-467.
3. Junfang Wu, Yongping Teng and Na Zhang: A research on diffraction characteristics of TOFD probes by performance testing. Nondestructive Testing, Vol. 28 No. 2 (2006), pp.64-67 (In Chinese).
4. T. Mihara, Y. Otsuka, H. Cho and K. Yamanaka: Time-of-flight diffraction measurement using laser ultrasound. Experimental Mechanics, Vol. 46 No. 5 (2006), pp.561-567.
5. Di Tang, Xingqun Zhao and Ling Xia: Research and realization of real-time ultrasonic TOFD scan imaging system. In: Advances in Computer Science, Intelligent System and Environment. Springer Berlin Heidelberg (2011), pp.555-559.