Non-contact ultrasonic guided wave inspections of rails

Thompson V. Nguyen; Stefano Mariani; Francesco Lanza di Scalea

doi:10.1117/12.2044105

9 March 2014 Non-contact ultrasonic guided wave inspections of rails

Thompson V. Nguyen, Stefano Mariani, Francesco Lanza di Scalea

Proceedings Volume 9064, Health Monitoring of Structural and Biological Systems 2014; 90640V (2014) https://doi.org/10.1117/12.2044105
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

The University of California at San Diego (UCSD), under a Federal Railroad Administration (FRA) Office of Research and Development (R&D) grant, is developing a system for high-speed and non-contact rail integrity evaluation. A prototype using an ultrasonic air-coupled guided wave signal generation and air-coupled signal detection, in pair with a real-time statistical analysis algorithm, is under development. Experimental tests results, carried out at the UCSD Rail Defect Farm, indicate that the prototype is able to detect internal rail defects with high reliability. Extensions of the system are planned to add rail surface characterization to the internal rail defect detection.

Citation Download Citation

Thompson V. Nguyen, Stefano Mariani, and Francesco Lanza di Scalea "Non-contact ultrasonic guided wave inspections of rails", Proc. SPIE 9064, Health Monitoring of Structural and Biological Systems 2014, 90640V (9 March 2014); https://doi.org/10.1117/12.2044105

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