TY - JOUR
T1 - Novel electromagnetic acoustic transducer for measuring the thickness of small specimen areas
AU - Sun, Hongjun
AU - Urayama, Ryoichi
AU - Hashimoto, Mitsuo
AU - Kojima, Fumio
AU - Uchimoto, Tetsuya
AU - Takagi, Toshiyuki
N1 - Funding Information:
This work was partly supported by (1) the JSPS Core-to-Core Program, A. Advanced Research Networks, “International research core on smart layered materials and structures for energy saving”, (2) the “Fundamental Research and Human Resources Development Program for Nuclear Decommissioning related to Integrity Management of Critical Structures including Primary Containment Vessel and Reactor Building, and Fuel Debris Processing and Radioactive Waste Disposal” by the Ministry of Education, Culture, Sports, Science and Technology of Japan, (3) the “Piping System, Risk Management based on Wall Thinning Monitoring and Prediction” carried out under the Center of World Intelligence Project for Nuclear S&T and Human Resource Development by the Ministry of Education, Culture, Sports, Science and Technology of Japan, and ANR of France, and (4) the IFS Research Assistant Award for International Students.
Publisher Copyright:
© 2019 IOS Press and the authors. All rights reserved.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019
Y1 - 2019
N2 - 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%.
AB - 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%.
KW - Electromagnetic acoustic transducer
KW - magnet configuration
KW - racetrack coil
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U2 - 10.3233/JAE-171106
DO - 10.3233/JAE-171106
M3 - Article
AN - SCOPUS:85063326102
VL - 59
SP - 1495
EP - 1504
JO - International journal of applied electromagnetics in materials
JF - International journal of applied electromagnetics in materials
SN - 1383-5416
IS - 4
ER -