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1. Composite delamination damage location based on non-orthogonal air-coupled ultrasonic guided waves and Artifact-Reduction damage index NSTL国家科技图书文献中心

Sun J. |  Zhang H.... -  《Applied acoustics》 - 2025,228(Jan.) - 1.1~1.8 - 共8页

摘要:-noise ratio of the air-coupled ultrasonic signal is |  non-orthogonal Air-coupled Ultrasonic Guided Waves | . Due to the attenuation of the air-coupled ultrasound | © 2024 Elsevier LtdThis study focuses on the |  localization of delamination damage in composite materials
关键词: Air-coupled ultrasonic testing |  Anisotropy |  CFRP |  Damage index |  Delamination |  Non-orthogonal scanning

2. Air-coupled transducer tilted C-scan for delamination introduced during the manufacturing process in CFRP plates NSTL国家科技图书文献中心

Yang, Lijuan |  Wu, Desheng... -  《Nondestructive Testing and Evaluation》 - 2025,40(2) - 770~783 - 共14页

摘要:, conventional ultrasonic testing faces significant constraints |  delamination based on air-coupled transducers (ACT). By |  improve the detection ability of Air-coupled transducer |  after certain impacts. Non-destructive ultrasonic |  testing (NDT) is a widely employed technique for
关键词: CFRP |  delamination |  air-coupled transducer |  C-scan

3. Improved singular spectrum decomposition method for resonance recognition of air-coupled ultrasonic signals in through-transmission steel plate detection NSTL国家科技图书文献中心

Li, Rongxue |  Yang, Lijian... -  《Measurement Science & Technology》 - 2025,36(1) - 1~16 - 共16页

摘要:Air-coupled ultrasonic resonance detection is |  coupling agents in conventional ultrasonic testing and |  mismatch of acoustic impedance at the air-solid interface |  and sound attenuation in the air. This study |  with varying air lift-off distances and thicknesses
关键词: singular spectral decomposition |  air-coupled ultrasonic |  resonance |  signal processing

4. A generic time-frequency analysis-based signal processing and imaging approach for air-coupled ultrasonic testing NSTL国家科技图书文献中心

Bingyang Han |  Chen Jiang... -  《NDT & E International: Independent Nondestructive Testing and Evaluation》 - 2024,144(Jun.) - 103101.1~103101.15 - 共15页 - 被引量:5

摘要: resolution for automated air-coupled ultrasonic testing. | The utilization of air-coupled ultrasonic |  coupling. Nevertheless, air-coupled ultrasonic is |  processes. In this study, a generic air-coupled ultrasonic |  signal processing and imaging procedure for ultrasonic
关键词: Air-coupled ultrasonic |  Time-frequency analysis |  Denoise |  Imaging |  Probability of detection

5. Ultrasonic testing in the field of engineering joining NSTL国家科技图书文献中心

Fan Zongkai |  Bai Keran... -  《The International Journal of Advanced Manufacturing Technology》 - 2024,132(9/10) - 4135~4160 - 共26页

摘要: air-coupled ultrasonic testing, electromagnetic |  constantly upgraded, ultrasonic testing technology can more |  testing, and ultrasonic testing. The main principles and |  devices of ultrasonic testing are introduced, including |  ultrasonic testing, laser ultrasonic testing, and so on
关键词: Ultrasonic testing |  Non-destructive testing |  Joining performance and quality testing |  Bolt testing |  Laser ultrasonic testing |  Air-coupled ultrasonic testing |  Electromagnetic ultrasonic testing

6. Fluidic Ultrasound Generation for Non-Destructive Testing NSTL国家科技图书文献中心

Benjamin Bühling |  Stefan Maack... -  《Advanced Materials》 - 2024,36(18) - 2311724.1~2311724.9 - 共9页 - 被引量:2

摘要:Air-coupled ultrasonic testing (ACU) is a |  pioneering technique innon-destructive testing (NDT). While |  contact testing and fluid immersiontesting are standard |  isprogressing slowly, especially in the low ultrasonic |  methods in many applications, the adoption of ACU
关键词: aeroacoustics |  air-coupled ultrasound |  fluidics |  harsh environment |  laser Doppler vibrometer |  non destructive testing

7. Numerical and experimental investigation on debonding detection in honeycomb sandwich using air-coupled local defect resonance and coda wave analysis NSTL国家科技图书文献中心

Li Z. |  Jiao J.... -  《Ultrasonics》 - 2024,144 - 共5页

摘要:, the air-coupled local defect resonance (LDR |  sandwich structure by air-coupled excitations, and a | © 2024 Elsevier B.V.Non-contact ultrasonic |  testing of debonding in honeycomb sandwich structure has |  nondestructive testing (NDT) of debonding in honeycomb sandwich
关键词: Air-coupled ultrasound |  Coda wave |  Honeycomb sandwich structure |  Local defect resonance |  Numerical simulation

8. 空中超音波による非接触超音波計測 NSTL国家科技图书文献中心

田中雄介 -  《计测と制御》 - 2024,63(4) - 239~243 - 共5页

摘要:から超音波計測を行う検査システム「NAUT21」(Non-contact Air-coupled |  Ultrasonic Testing)」を開発し,リチウムイオン電池の電解液浸透状況観測などを報告した.上記の計測は | 道路や橋などのインフラや工場の配管など構造物の健全性や劣化を検査する方法として計測対象を破壊 | せずに検査する非破壊検査が実施されている.対象表面だけでなく内部の検査は超音波や放射線が用いられ | ,特に超音波検査は被曝の心配がなく装置も簡便であるため広く実施されている.超音波検査は医療用のエコーと
关键词: 超音波 |  非接触 |  ガイド波 |  V透過法 |  空中超音波

9. Noncontact nondestructive ultrasonic techniques for manufacturing defects monitoring in composites: a review NSTL国家科技图书文献中心

Hanadi Mortada |  Sarah El Mousharrafi...... -  《Structural health monitoring》 - 2024,23(3) - 1969~1997 - 共29页 - 被引量:6

摘要: testing techniques are also reviewed, air-coupled |  progress achieved in the field of air-coupled ultrasonic |  use of couplants. Moreover, these ultrasonic testing | ’ characterization. The emphasis of this paper is on ultrasonic |  depth of ultrasonic penetration for flaw detection
关键词: Composites |  manufacturing defects |  nondestructive testing |  structural health monitoring |  air-coupled ultrasound |  Lamb waves

10. Experimental validation of zero-group-velocity feature guided waves in a welded joint utilizing the pitch-catch measurement technique with air-coupled ultrasonic transducers NSTL国家科技图书文献中心

Meng X. |  Deng M.... -  《Ultrasonics》 - 2024,142 - 共5页

摘要: method with air-coupled ultrasonic transducers to |  air-coupled ultrasonic transducers to excite ZGV |  field of ultrasonic nondestructive testing. The ZGV |  pitch-catch measurement technique with air-coupled | -coupled ultrasonic transducers is indeed ZGV Lamb waves
关键词: Air-coupled ultrasonic transducers |  Feature guided waves (FGWs) |  Resonance frequency |  Welded joint |  Zero-group-velocity (ZGV)
检索条件Air-coupled ultrasonic testing
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