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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… Click to show full 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.
Keywords:
waves multi;
beam forming;
horizontal guided;
forming shear;
shear horizontal;
guided waves
Journal Title: Ultrasonics
Year Published: 2021
Link to full text (if available)
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Journal Title: Ultrasonics
Year Published: 2021
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!