Variable-rank imaging and testing of multi-frames for line array of ultrasonic guided waves with weld scattering
The imaging and testing of ultrasonic guided wave array in plates under the condition of weld scattering is of great significance. The variable-rank imaging of multi-frames for line arrays of ultrasonic shear horizontal( SH)guided waves is proposed for testing of weld plate. The imaging mechanism of...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Transactions of the China Welding Institution, Welding Journals Publishing House
2025-01-01
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| Series: | Hanjie xuebao |
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| Online Access: | https://doi.org/10.12073/j.hjxb.20231023001 |
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| _version_ | 1850086853259034624 |
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| author | Xinjie ZHU Yongtao LI Mingxi DENG Sen YAO Jie ZHANG |
| author_facet | Xinjie ZHU Yongtao LI Mingxi DENG Sen YAO Jie ZHANG |
| author_sort | Xinjie ZHU |
| collection | DOAJ |
| description | The imaging and testing of ultrasonic guided wave array in plates under the condition of weld scattering is of great significance. The variable-rank imaging of multi-frames for line arrays of ultrasonic shear horizontal( SH)guided waves is proposed for testing of weld plate. The imaging mechanism of variable-rank imaging of multi-frames for line array of ultrasonic guided waves with weld scattering is discussed, and the relationship between the receiving matrix and its rank is analyzed. The results show that when the weld scattering factor k ≥ 2, the rank of the receiving matrix will increase to (k-1) times the number of elements in the synthetic aperture array. With the increase of the rank of the receiving matrix, the defect grayscale and signal-to-noise ratio (SNR) of the variable-rank images of multi-frames increase to varying degrees. The SNR curves would have inflection points when the rank is half of the full rank, and the imaging effect would be better when the rank is two-thirds of the full rank. The variable-rank imaging of multi-frames for line array of ultrasonic guided waves would effectively characterize the defects with the same wavelength size in the weld plate. The imaging and testing of experiment verifies the effectiveness of the theoretical analysis, which demonstrate the feasibility and validity of this research approach. |
| format | Article |
| id | doaj-art-1cccfb5873484f50b78d23d140f8df8a |
| institution | DOAJ |
| issn | 0253-360X |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Office of Transactions of the China Welding Institution, Welding Journals Publishing House |
| record_format | Article |
| series | Hanjie xuebao |
| spelling | doaj-art-1cccfb5873484f50b78d23d140f8df8a2025-08-20T02:43:20ZzhoEditorial Office of Transactions of the China Welding Institution, Welding Journals Publishing HouseHanjie xuebao0253-360X2025-01-01461808610.12073/j.hjxb.20231023001hjxb-46-1-zhuxinjieVariable-rank imaging and testing of multi-frames for line array of ultrasonic guided waves with weld scatteringXinjie ZHU0Yongtao LI1Mingxi DENG2Sen YAO3Jie ZHANG4School of Materials Science and Engineering, North Minzu University, Yinchuan, 750021, ChinaSchool of Materials Science and Engineering, North Minzu University, Yinchuan, 750021, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing, 400044, ChinaSchool of Materials Science and Engineering, North Minzu University, Yinchuan, 750021, ChinaSchool of Materials Science and Engineering, North Minzu University, Yinchuan, 750021, ChinaThe imaging and testing of ultrasonic guided wave array in plates under the condition of weld scattering is of great significance. The variable-rank imaging of multi-frames for line arrays of ultrasonic shear horizontal( SH)guided waves is proposed for testing of weld plate. The imaging mechanism of variable-rank imaging of multi-frames for line array of ultrasonic guided waves with weld scattering is discussed, and the relationship between the receiving matrix and its rank is analyzed. The results show that when the weld scattering factor k ≥ 2, the rank of the receiving matrix will increase to (k-1) times the number of elements in the synthetic aperture array. With the increase of the rank of the receiving matrix, the defect grayscale and signal-to-noise ratio (SNR) of the variable-rank images of multi-frames increase to varying degrees. The SNR curves would have inflection points when the rank is half of the full rank, and the imaging effect would be better when the rank is two-thirds of the full rank. The variable-rank imaging of multi-frames for line array of ultrasonic guided waves would effectively characterize the defects with the same wavelength size in the weld plate. The imaging and testing of experiment verifies the effectiveness of the theoretical analysis, which demonstrate the feasibility and validity of this research approach.https://doi.org/10.12073/j.hjxb.20231023001weld structureultrasonic guided waveslinear arrayvariable-rank of multi-framesimaging and testing |
| spellingShingle | Xinjie ZHU Yongtao LI Mingxi DENG Sen YAO Jie ZHANG Variable-rank imaging and testing of multi-frames for line array of ultrasonic guided waves with weld scattering Hanjie xuebao weld structure ultrasonic guided waves linear array variable-rank of multi-frames imaging and testing |
| title | Variable-rank imaging and testing of multi-frames for line array of ultrasonic guided waves with weld scattering |
| title_full | Variable-rank imaging and testing of multi-frames for line array of ultrasonic guided waves with weld scattering |
| title_fullStr | Variable-rank imaging and testing of multi-frames for line array of ultrasonic guided waves with weld scattering |
| title_full_unstemmed | Variable-rank imaging and testing of multi-frames for line array of ultrasonic guided waves with weld scattering |
| title_short | Variable-rank imaging and testing of multi-frames for line array of ultrasonic guided waves with weld scattering |
| title_sort | variable rank imaging and testing of multi frames for line array of ultrasonic guided waves with weld scattering |
| topic | weld structure ultrasonic guided waves linear array variable-rank of multi-frames imaging and testing |
| url | https://doi.org/10.12073/j.hjxb.20231023001 |
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