返回
A high efficiency adaptive ultrasonic array imaging method with sensitivity correction for curved structures
DOI:10.1016/j.measurement.2024.115322.png)
摘要
En 中文
The adaptive ultrasonic array imaging can be used for defects detection with unknown sample profile. To solve the problems of low computational efficiency and difficult quantitative evaluation in detection, this paper presents a high efficiency adaptive ultrasonic array imaging method with sensitivity correction. For surface reconstruction, the vector coherence technique has been used to correct the plane wave imaging of sample surface with single emission, which improves the imaging quality and efficiency. A robust fitting method is proposed based on Random Sample Consensus algorithm to reconstruct the surface after the surface pixel recognition. To reduce the beam path calculation time, a prediction search method is developed, whose time consumption is reduced by 97.2 % compared with the global traversal method with the same results. The sensitivity correction algorithm is proposed based on the ultrasonic propagation model, which makes the amplitude difference of defects in different regions is less than 0.8 dB.
Keyword:
Non-destructive testing
Ultrasonic array
Curved structure
Adaptive imaging
High efficiency
期刊
IF:
5.6
论文数:
2.1W
被引数:
5.4W
机构
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
ULTRASONICS
IF4.1
Online monitoring of structural materials integrity in process industry for I4.0: A focus on material loss through erosion and corrosion sensing
MEASUREMENT
IF5.6
A comparison between ultrasonic array beamforming and super resolution imaging algorithms for non-destructive evaluation用于无损评估的超声阵列波束形成和超分辨率成像算法的比较
ULTRASONICS
IF4.1

