A SAFT Method for the Detection of Void Defect inside a Ballastless Track Structure Using Ultrasonic Array Sensors

A SAFT Method for the Detection of Void Defect inside a Ballastless Track Structure Using Ultrasonic Array Sensors

High-precision ultrasound imaging of void defects is critical for the performance and safety assessment of ballastless track structures. The sound propagation velocity of each layer in the ballastless track structure is quite different. However, the traditional concrete Synthetic Aperture Focusing T...

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Bibliographic Details
Main Authors: Wen-Fa Zhu, Xing-Jie Chen, Zai-Wei Li, Xiang-Zhen Meng, Guo-Peng Fan, Wei Shao, Hai-Yan Zhang
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Sensors
Subjects:
saft imaging
ultrasonic array sensors
multilayer structure
ballastless track structure
void defect detection
Online Access:https://www.mdpi.com/1424-8220/19/21/4677

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https://www.mdpi.com/1424-8220/19/21/4677

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