Numerical and experimental evaluation of the receiving performance of meander-line coil EMATs

Shujuan Wang; Zhichao Li; Pengzhan Li; Xin Liu; Guofu Zhai

doi:10.1080/10589759.2014.941838

Numerical and experimental evaluation of the receiving performance of meander-line coil EMATs

Shujuan Wang^*
, Zhichao Li
, Pengzhan Li
, Xin Liu
, Guofu Zhai

^*Corresponding author for this work

School of Electrical Engineering and Automation, Harbin Institute of Technology

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

35 Scopus citations

Abstract

Electromagnetic acoustic transducers (EMATs) have low transduction efficiency and they are sensitive to the electromagnetic noise, which can result in low signal-to-noise ratio of the received signals. This article presents a multi-physical finite element (FE) model for meander-line (ML) coil EMATs, operating on the Lorentz force mechanism, and the influence of the surrounding electromagnetic fields is also taken into consideration. The generation and reception of Rayleigh waves by EMATs can be described by this model. The receiving performances of two kinds of ML coils have been simulated by the FE model and tested by experiments. The experimental results agree well with the simulation.

Original language	English
Pages (from-to)	269-282
Number of pages	14
Journal	Nondestructive Testing and Evaluation
Volume	29
Issue number	4
DOIs	https://doi.org/10.1080/10589759.2014.941838
State	Published - 1 Oct 2014
Externally published	Yes

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10.1080/10589759.2014.941838

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title = "Numerical and experimental evaluation of the receiving performance of meander-line coil EMATs",

abstract = "Electromagnetic acoustic transducers (EMATs) have low transduction efficiency and they are sensitive to the electromagnetic noise, which can result in low signal-to-noise ratio of the received signals. This article presents a multi-physical finite element (FE) model for meander-line (ML) coil EMATs, operating on the Lorentz force mechanism, and the influence of the surrounding electromagnetic fields is also taken into consideration. The generation and reception of Rayleigh waves by EMATs can be described by this model. The receiving performances of two kinds of ML coils have been simulated by the FE model and tested by experiments. The experimental results agree well with the simulation.",

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AU - Wang, Shujuan

AU - Li, Zhichao

AU - Li, Pengzhan

AU - Liu, Xin

AU - Zhai, Guofu

PY - 2014/10/1

Y1 - 2014/10/1

N2 - Electromagnetic acoustic transducers (EMATs) have low transduction efficiency and they are sensitive to the electromagnetic noise, which can result in low signal-to-noise ratio of the received signals. This article presents a multi-physical finite element (FE) model for meander-line (ML) coil EMATs, operating on the Lorentz force mechanism, and the influence of the surrounding electromagnetic fields is also taken into consideration. The generation and reception of Rayleigh waves by EMATs can be described by this model. The receiving performances of two kinds of ML coils have been simulated by the FE model and tested by experiments. The experimental results agree well with the simulation.

AB - Electromagnetic acoustic transducers (EMATs) have low transduction efficiency and they are sensitive to the electromagnetic noise, which can result in low signal-to-noise ratio of the received signals. This article presents a multi-physical finite element (FE) model for meander-line (ML) coil EMATs, operating on the Lorentz force mechanism, and the influence of the surrounding electromagnetic fields is also taken into consideration. The generation and reception of Rayleigh waves by EMATs can be described by this model. The receiving performances of two kinds of ML coils have been simulated by the FE model and tested by experiments. The experimental results agree well with the simulation.

UR - https://www.scopus.com/pages/publications/84907591607

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JO - Nondestructive Testing and Evaluation

JF - Nondestructive Testing and Evaluation

IS - 4

ER -

Numerical and experimental evaluation of the receiving performance of meander-line coil EMATs

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