Shankar, Siddharth ; Balasubramanian, Krishnan (2021) Beam forming of shear horizontal guided waves by multi-row staggered magnet configurations Ultrasonics, 114 . p. 106405. ISSN 0041-624X
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Official URL: https://doi.org/10.1016/j.ultras.2021.106405
Related URL: http://dx.doi.org/10.1016/j.ultras.2021.106405
Abstract
This paper introduces the wave interferences effects of staggering multiple rows of Periodically Permanent Magnets (PPM) in an Electromagnetic Acoustic Transducer (EMAT) configuration to achieve selective beam forming effects such as steering, focusing and de-focusing of guided ultrasonic waves. The shear horizontal (SH) guided ultrasonic wave in a metal plate was used to demonstrate these effects using numerical Finite Element Model (FEM) that were validated using experiments.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 140878 |
| Deposited On: | 24 Nov 2025 05:16 |
| Last Modified: | 24 Nov 2025 05:16 |
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