Micro-Sized Pinhole Inspection with Segmented Time Reversal and High-Order Modes Cluster Lamb Waves Based on EMATs
Abstract Pinhole corrosion is difficult to discover through conventional ultrasonic guided waves inspection, particularly for micro-sized pinholes less than 1 mm in diameter. This study proposes a new micro-sized pinhole inspection method based on segmented time reversal (STR) and high-order modes c...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-02-01
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| Series: | Chinese Journal of Mechanical Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s10033-023-00853-1 |
| _version_ | 1797865438297718784 |
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| author | Jinjie Zhou Yang Hu Xiang Li Yang Zheng Sanhu Yang Yao Liu |
| author_facet | Jinjie Zhou Yang Hu Xiang Li Yang Zheng Sanhu Yang Yao Liu |
| author_sort | Jinjie Zhou |
| collection | DOAJ |
| description | Abstract Pinhole corrosion is difficult to discover through conventional ultrasonic guided waves inspection, particularly for micro-sized pinholes less than 1 mm in diameter. This study proposes a new micro-sized pinhole inspection method based on segmented time reversal (STR) and high-order modes cluster (HOMC) Lamb waves. First, the principle of defect echo enhancement using STR is introduced. Conventional and STR inspection experiments were conducted on aluminum plates with a thickness of 3 mm and defects with different diameters and depths. The parameters of the segment window are discussed in detail. The results indicate that the proposed method had an amplitude four times larger than of conventional ultrasonic guided waves inspection method for pinhole defect detection and could detect micro-sized pinhole defects as small as 0.5 mm in diameter and 0.5 mm in depth. Moreover, the segment window location and width (5−10 times width of the conventional excitation signal) did not affect the detection sensitivity. The combination of low-power and STR is more conducive to detection in different environments, indicating the robustness of the proposed method. Compared with conventional ultrasonic guided wave inspection methods, the proposed method can detect much smaller defect echoes usually obscured by noise that are difficult to detect with a lower excitation power and thus this study would be a good reference for pinhole defect detection. |
| first_indexed | 2024-04-09T23:07:56Z |
| format | Article |
| id | doaj.art-e2d47671601b4206875d329ae65a8f38 |
| institution | Directory Open Access Journal |
| issn | 2192-8258 |
| language | English |
| last_indexed | 2024-04-09T23:07:56Z |
| publishDate | 2023-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Chinese Journal of Mechanical Engineering |
| spelling | doaj.art-e2d47671601b4206875d329ae65a8f382023-03-22T10:37:20ZengSpringerOpenChinese Journal of Mechanical Engineering2192-82582023-02-0136111310.1186/s10033-023-00853-1Micro-Sized Pinhole Inspection with Segmented Time Reversal and High-Order Modes Cluster Lamb Waves Based on EMATsJinjie Zhou0Yang Hu1Xiang Li2Yang Zheng3Sanhu Yang4Yao Liu5School of Mechanical Engineering, North University of ChinaSchool of Mechanical Engineering, North University of ChinaSchool of Aeronautics and Astronautics, University of Electronic Science and Technology of ChinaChina Special Equipment Inspection and Research InstituteSchool of Mechanical Engineering, North University of ChinaSchool of Mechanical Engineering, North University of ChinaAbstract Pinhole corrosion is difficult to discover through conventional ultrasonic guided waves inspection, particularly for micro-sized pinholes less than 1 mm in diameter. This study proposes a new micro-sized pinhole inspection method based on segmented time reversal (STR) and high-order modes cluster (HOMC) Lamb waves. First, the principle of defect echo enhancement using STR is introduced. Conventional and STR inspection experiments were conducted on aluminum plates with a thickness of 3 mm and defects with different diameters and depths. The parameters of the segment window are discussed in detail. The results indicate that the proposed method had an amplitude four times larger than of conventional ultrasonic guided waves inspection method for pinhole defect detection and could detect micro-sized pinhole defects as small as 0.5 mm in diameter and 0.5 mm in depth. Moreover, the segment window location and width (5−10 times width of the conventional excitation signal) did not affect the detection sensitivity. The combination of low-power and STR is more conducive to detection in different environments, indicating the robustness of the proposed method. Compared with conventional ultrasonic guided wave inspection methods, the proposed method can detect much smaller defect echoes usually obscured by noise that are difficult to detect with a lower excitation power and thus this study would be a good reference for pinhole defect detection.https://doi.org/10.1186/s10033-023-00853-1Pinhole corrosionHigh-order modes clusterLamb wavesSegmented time reversal inspectionElectromagnetic acoustic transducer |
| spellingShingle | Jinjie Zhou Yang Hu Xiang Li Yang Zheng Sanhu Yang Yao Liu Micro-Sized Pinhole Inspection with Segmented Time Reversal and High-Order Modes Cluster Lamb Waves Based on EMATs Chinese Journal of Mechanical Engineering Pinhole corrosion High-order modes cluster Lamb waves Segmented time reversal inspection Electromagnetic acoustic transducer |
| title | Micro-Sized Pinhole Inspection with Segmented Time Reversal and High-Order Modes Cluster Lamb Waves Based on EMATs |
| title_full | Micro-Sized Pinhole Inspection with Segmented Time Reversal and High-Order Modes Cluster Lamb Waves Based on EMATs |
| title_fullStr | Micro-Sized Pinhole Inspection with Segmented Time Reversal and High-Order Modes Cluster Lamb Waves Based on EMATs |
| title_full_unstemmed | Micro-Sized Pinhole Inspection with Segmented Time Reversal and High-Order Modes Cluster Lamb Waves Based on EMATs |
| title_short | Micro-Sized Pinhole Inspection with Segmented Time Reversal and High-Order Modes Cluster Lamb Waves Based on EMATs |
| title_sort | micro sized pinhole inspection with segmented time reversal and high order modes cluster lamb waves based on emats |
| topic | Pinhole corrosion High-order modes cluster Lamb waves Segmented time reversal inspection Electromagnetic acoustic transducer |
| url | https://doi.org/10.1186/s10033-023-00853-1 |
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