Journal
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS
Volume 59, Issue 4, Pages 1495-1504Publisher
IOS PRESS
DOI: 10.3233/JAE-171106
Keywords
Electromagnetic acoustic transducer; racetrack coil; magnet configuration
Funding
- JSPS
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- ANR of France
- IFS Research Assistant Award for International Students
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Intense ultrasonic waves are required to accurately measure the thickness of corroded specimen at a given point. The most intense part of the ultrasonic wave should be at the measurement point itself. In this paper, finite element simulation is used to optimize the structure of the classic racetrack coil bulk wave electromagnetic acoustic transducer to produce more intense, concentrated ultrasonic waves in a smaller area. In addition, a new magnet configuration is used that increases the wave intensity. Compared with the classic magnet configuration, the maximum amplitude of the ultrasonic wave is increased by 21%.
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