Novel electromagnetic acoustic transducer for measuring the thickness of small specimen areas

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...

Full description

Saved in:
Bibliographic Details
Published inInternational Journal of Applied Electromagnetics and Mechanics Vol. 59; no. 4; pp. 1495 - 1504
Main Authors Sun, Hongjun, Urayama, Ryoichi, Hashimoto, Mitsuo, Kojima, Fumio, Uchimoto, Tetsuya, Takagi, Toshiyuki
Format Journal Article
LanguageEnglish
Published SAGE Publications 21.03.2019
IOS Press
Subjects
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism
Electromagnetism
Engineering Sciences
Online AccessGet full text

Cover

More Information
Summary: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%.
ISSN:1383-5416
1875-8800
DOI:10.3233/jae-171106