Research on Dry Coupling Technology in the Ultrasonic Non-Destructive Testing of Concrete
In the health monitoring and safety assessments of concrete structures, ultrasonic non-destructive testing (NDT) technology has become an indispensable tool due to its non-destructive nature, efficiency, and precision. However, when used in inspecting irregular concrete surfaces, traditional planar...
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MDPI AG
2025-01-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/16/1/72 |
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| author | Jun Li Zeyu Chen |
| author_facet | Jun Li Zeyu Chen |
| author_sort | Jun Li |
| collection | DOAJ |
| description | In the health monitoring and safety assessments of concrete structures, ultrasonic non-destructive testing (NDT) technology has become an indispensable tool due to its non-destructive nature, efficiency, and precision. However, when used in inspecting irregular concrete surfaces, traditional planar ultrasonic transducers often encounter energy loss and signal attenuation induced by poor interface coupling, which significantly reduces the accuracy and reliability of the test results. To address this problem, this article proposes a point-contact dry coupling ultrasonic transducer solution, which enables efficient acquisition of ultrasonic signals within concrete without the need for couplants. By combining an array imaging system with a total focusing algorithm, this study not only significantly enhances the convenience and signal-to-noise ratio (SNR) of concrete ultrasonic imaging, but also opens new pathways for ultrasonic NDT technology in concrete. |
| format | Article |
| id | doaj-art-d4c136d36b524d3d89a21dcbb0f82d4a |
| institution | Kabale University |
| issn | 2072-666X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-d4c136d36b524d3d89a21dcbb0f82d4a2025-01-24T13:42:02ZengMDPI AGMicromachines2072-666X2025-01-011617210.3390/mi16010072Research on Dry Coupling Technology in the Ultrasonic Non-Destructive Testing of ConcreteJun Li0Zeyu Chen1College of Mechanical & Electrical Engineering, Central South University, Changsha 410083, ChinaCollege of Mechanical & Electrical Engineering, Central South University, Changsha 410083, ChinaIn the health monitoring and safety assessments of concrete structures, ultrasonic non-destructive testing (NDT) technology has become an indispensable tool due to its non-destructive nature, efficiency, and precision. However, when used in inspecting irregular concrete surfaces, traditional planar ultrasonic transducers often encounter energy loss and signal attenuation induced by poor interface coupling, which significantly reduces the accuracy and reliability of the test results. To address this problem, this article proposes a point-contact dry coupling ultrasonic transducer solution, which enables efficient acquisition of ultrasonic signals within concrete without the need for couplants. By combining an array imaging system with a total focusing algorithm, this study not only significantly enhances the convenience and signal-to-noise ratio (SNR) of concrete ultrasonic imaging, but also opens new pathways for ultrasonic NDT technology in concrete.https://www.mdpi.com/2072-666X/16/1/72ultrasonic transducernon-destructive testingultrasonic imaging |
| spellingShingle | Jun Li Zeyu Chen Research on Dry Coupling Technology in the Ultrasonic Non-Destructive Testing of Concrete Micromachines ultrasonic transducer non-destructive testing ultrasonic imaging |
| title | Research on Dry Coupling Technology in the Ultrasonic Non-Destructive Testing of Concrete |
| title_full | Research on Dry Coupling Technology in the Ultrasonic Non-Destructive Testing of Concrete |
| title_fullStr | Research on Dry Coupling Technology in the Ultrasonic Non-Destructive Testing of Concrete |
| title_full_unstemmed | Research on Dry Coupling Technology in the Ultrasonic Non-Destructive Testing of Concrete |
| title_short | Research on Dry Coupling Technology in the Ultrasonic Non-Destructive Testing of Concrete |
| title_sort | research on dry coupling technology in the ultrasonic non destructive testing of concrete |
| topic | ultrasonic transducer non-destructive testing ultrasonic imaging |
| url | https://www.mdpi.com/2072-666X/16/1/72 |
| work_keys_str_mv | AT junli researchondrycouplingtechnologyintheultrasonicnondestructivetestingofconcrete AT zeyuchen researchondrycouplingtechnologyintheultrasonicnondestructivetestingofconcrete |