LIU Wenjing, QIN Huajun, WANG Jianguo, et al. Total focus 3D imaging based on ultrasonic phased array[J]. 2020, (12): 26-28+35. DOI: 10.13873/J.1000-9787(2020)12-0026-03.
Aiming at the problem of single defect information in traditional ultrasonic phased array twodimensional inspection atlas
in order to more intuitively reflect the shape and size of defects in three-dimensional space
a one-dimensional linear array probe with position encoder is used to draw a series of bit with bit by combining slicing processing with total focus method
MATLAB software platform and the collected full matrix data The full focus image with information is set
and the image is optimized by gain processing technology. On this basis
according to the real position information of the image in the three-dimensional space
the threedimensional reconstruction of defects is completed by using the isosurface method and image binarization processing
and the three-dimensional ultrasonic phased array imaging based on one-dimensional linear array is realized. The results show that: this method can realize the visual display of the detected area in space
and obtain high-quality three-dimensional imaging of defects
which makes the shape and location of defects more abundant.