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

Hongjun Sun; Ryoichi Urayama; Mitsuo Hashimoto; Fumio Kojima; Tetsuya Uchimoto; Toshiyuki Takagi

doi:10.3233/JAE-171106

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

Hongjun Sun, Ryoichi Urayama, Mitsuo Hashimoto, Fumio Kojima, Tetsuya Uchimoto, Toshiyuki Takagi

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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%.

Original language	English
Pages (from-to)	1495-1504
Number of pages	10
Journal	International Journal of Applied Electromagnetics and Mechanics
Volume	59
Issue number	4
DOIs	https://doi.org/10.3233/JAE-171106
Publication status	Published - 2019

Keywords

Electromagnetic acoustic transducer
magnet configuration
racetrack coil

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

Access to Document

10.3233/JAE-171106

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Novel electromagnetic acoustic transducer for measuring the thickness of small specimen areas. / Sun, Hongjun; Urayama, Ryoichi; Hashimoto, Mitsuo; Kojima, Fumio; Uchimoto, Tetsuya ; Takagi, Toshiyuki.

In: International Journal of Applied Electromagnetics and Mechanics, Vol. 59, No. 4, 2019, p. 1495-1504.

Research output: Contribution to journal › Article › peer-review

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AU - Takagi, Toshiyuki

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