Fault detection in railway track using piezoelectric impedance

M. Cremins; Qi Shuai; Jiawen Xu; J. Tang

doi:10.1117/12.2045230

10 April 2014 Fault detection in railway track using piezoelectric impedance

M. Cremins, Qi Shuai, Jiawen Xu, J. Tang

Proceedings Volume 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014; 90612R (2014) https://doi.org/10.1117/12.2045230
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

In this research, piezoelectric transducers are incorporated in an impedance-based damage detection approach for railway track health monitoring. The impedance-based damage detection approach utilizes the direct relationship between the mechanical impedance of the track and electrical impedance of the piezoelectric transducer bonded. The effect of damage is shown in the change of a healthy impedance curve to an altered, damaged curve. Using a normalized relative difference outlier analysis, the occurrences of various damages on the track are determined. Furthermore, the integration of inductive circuitry with the piezoelectric transducer is found to be able to considerably increase overall damage detection sensitivity.

Citation Download Citation

M. Cremins, Qi Shuai, Jiawen Xu, and J. Tang "Fault detection in railway track using piezoelectric impedance", Proc. SPIE 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014, 90612R (10 April 2014); https://doi.org/10.1117/12.2045230

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