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Plane Wave Imaging through Interfaces
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DOI：10.3390/s21154967.png)
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摘要
En 中文
Plane Wave Imaging (PWI) has been recently proposed for fast ultrasound inspections in the Non-Destructive-Testing (NDT) field. By using a single (or a reduced number) of plane wave emissions and parallel beamforming in reception, frame rates of hundreds to thousands of images per second can be achieved without significant image quality losses with regard to the Total Focusing Method (TFM) or Phased Array (PA). This work addresses the problem of applying PWI in the presence of arbitrarily shaped interfaces, which is a common problem in NDT. First, the mathematical formulation for generating a plane wave inside a component of arbitrary geometry is given, and the characteristics of the resultant acoustic field are analyzed by simulation, showing plane wavefronts with non-uniform amplitude. Then, an imaging strategy is proposed, accounting for this amplitude effect. Finally, the proposed method is experimentally validated, and its application limits are discussed.
Keyword:
ultrasound imaging
phased array
total focusing method
plane wave imaging
non-destructive-testing
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期刊
IF:
3.5
论文数:
7.2W
被引数:
20.9W
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引用论文
Plane Wave Imaging for ultrasonic non-destructive testing: Generalization to multimodal imaging用于超声无损检测的平面波成像: 多模态成像的推广.png)
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