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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...
Autores principales: | Zhu, Wen-Fa, Chen, Xing-Jie, Li, Zai-Wei, Meng, Xiang-Zhen, Fan, Guo-Peng, Shao, Wei, Zhang, Hai-Yan |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6864854/ https://www.ncbi.nlm.nih.gov/pubmed/31661867 http://dx.doi.org/10.3390/s19214677 |
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