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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Autori principali:	Wen-Fa Zhu, Xing-Jie Chen, Zai-Wei Li, Xiang-Zhen Meng, Guo-Peng Fan, Wei Shao, Hai-Yan Zhang
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	MDPI AG 2019-10-01
Serie:	Sensors
Soggetti:	saft imaging ultrasonic array sensors multilayer structure ballastless track structure void defect detection
Accesso online:	https://www.mdpi.com/1424-8220/19/21/4677
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