Numerical Study of a Phased Array-Based Ultrasonic Polar Scan to Determine Plane-Wave Reflection Coefficients of Plates
| العنوان: | Numerical Study of a Phased Array-Based Ultrasonic Polar Scan to Determine Plane-Wave Reflection Coefficients of Plates |
|---|---|
| المؤلفون: | Jannes Daemen, Mathias Kersemans, Wim Van Paepegem, Arvid Martens, Erik Verboven, Koen Van Den Abeele, Steven Delrue |
| المصدر: | IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 66:1874-1886 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Materials science, Acoustics and Ultrasonics, Phased array, business.industry, Plane wave, 01 natural sciences, Optics, Apodization, 0103 physical sciences, Reflection (physics), Harmonic, Ultrasonic sensor, Electrical and Electronic Engineering, Reflection coefficient, business, 010301 acoustics, Instrumentation, Beam (structure) |
| الوصف: | Numerical finite-element (FE) simulations and postprocessing analysis methods are presented for ultrasonic polar scan (UPS) measurements involving a circular phased array (C-PA) to determine the plane-wave reflection coefficient of plates. Apodization weights for the C-PA elements are determined to assure the generation of a quasi-plane wave upon excitation at the plate surface and to mitigate bounded beam effects on the assessed reflection coefficient. In addition, postprocessing of the reflection signals is performed via the synthetic plane-wave technique to further filter out any bounded beam effects. Reflection coefficients are presented for three cases namely, an aluminum, a unidirectional carbon epoxy, and a cross-ply carbon epoxy plate. For all three cases, comparison with the analytical plane-wave theory shows excellent agreement with the reflection coefficients obtained by the C-PA and the additional postprocessing steps for both the pulsed and harmonic signals. It is also shown that the agreement becomes considerably worse if the nonspecular reflection field is disregarded in the postprocessing treatment, thus enforcing the need to capture the full reflected field via the PA whenever plane-wave reflection coefficients are needed. ispartof: IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL vol:66 issue:12 pages:1874-1886 ispartof: location:United States status: published |
| وصف الملف: | Print-Electronic |
| تدمد: | 1525-8955 0885-3010 1874-1886 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0575aa5c6ad159e79a617d50d22ce9b8 https://doi.org/10.1109/tuffc.2019.2931800 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....0575aa5c6ad159e79a617d50d22ce9b8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15258955 08853010 18741886 |
|---|