A new surface-wave EMAT design of enhanced transduction efficiency

Lei Kang; Feng Pan; Riliang Su; Chao Zhang; Jingmin Dai

doi:10.1109/FENDT.2014.6928224

A new surface-wave EMAT design of enhanced transduction efficiency

Lei Kang, Feng Pan, Riliang Su, Chao Zhang, Jingmin Dai

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

One of the main drawbacks of EMATs is their inefficiency in generating ultrasounds. To solve this problem, a new surface-wave EMAT design, whose magnet width is less than the coil, is proposed. The principle of the new EMAT is studied based on finite element simulation, which indicates that the EMAT is more efficient by taking advantage of both horizontal and vertical magnetic fields of the magnet. Experiment verified that the amplitude of the ultrasonic signal generated by the EMAT has been enhanced by about 53.7%. The potentials and limitations of the new design have also been discussed.

Original language	English
Title of host publication	FENDT 2014 - Proceedings, 2014 IEEE Far East Forum on Nondestructive Evaluation/Testing
Subtitle of host publication	New Technology and Application, Increasingly Perfect NDT/E
Editors	Qinxue Pan, Chunguang Xu, Liu Yang
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	9-13
Number of pages	5
ISBN (Electronic)	9781479947300
ISBN (Print)	9781479947317
DOIs	https://doi.org/10.1109/FENDT.2014.6928224
Publication status	Published - 16 Oct 2014
Event	2014 IEEE 11th Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, FENDT 2014 - Chengdu, China Duration: 20 Jun 2014 → 23 Jun 2014

Conference

Conference	2014 IEEE 11th Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, FENDT 2014
Country/Territory	China
City	Chengdu
Period	20/06/14 → 23/06/14

Keywords

electromagnetic acoustic transducers
finite element modelling
surface wave

Access to Document

10.1109/FENDT.2014.6928224

Cite this

Kang, L., Pan, F., Su, R., Zhang, C., & Dai, J. (2014). A new surface-wave EMAT design of enhanced transduction efficiency. In Q. Pan, C. Xu, & L. Yang (Eds.), FENDT 2014 - Proceedings, 2014 IEEE Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, Increasingly Perfect NDT/E (pp. 9-13). Article 6928224 Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/FENDT.2014.6928224

Kang, Lei ; Pan, Feng ; Su, Riliang et al. / A new surface-wave EMAT design of enhanced transduction efficiency. FENDT 2014 - Proceedings, 2014 IEEE Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, Increasingly Perfect NDT/E. editor / Qinxue Pan ; Chunguang Xu ; Liu Yang. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 9-13

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title = "A new surface-wave EMAT design of enhanced transduction efficiency",

abstract = "One of the main drawbacks of EMATs is their inefficiency in generating ultrasounds. To solve this problem, a new surface-wave EMAT design, whose magnet width is less than the coil, is proposed. The principle of the new EMAT is studied based on finite element simulation, which indicates that the EMAT is more efficient by taking advantage of both horizontal and vertical magnetic fields of the magnet. Experiment verified that the amplitude of the ultrasonic signal generated by the EMAT has been enhanced by about 53.7%. The potentials and limitations of the new design have also been discussed.",

keywords = "electromagnetic acoustic transducers, finite element modelling, surface wave",

author = "Lei Kang and Feng Pan and Riliang Su and Chao Zhang and Jingmin Dai",

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Kang, L, Pan, F, Su, R, Zhang, C & Dai, J 2014, A new surface-wave EMAT design of enhanced transduction efficiency. in Q Pan, C Xu & L Yang (eds), FENDT 2014 - Proceedings, 2014 IEEE Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, Increasingly Perfect NDT/E., 6928224, Institute of Electrical and Electronics Engineers Inc., pp. 9-13, 2014 IEEE 11th Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, FENDT 2014, Chengdu, China, 20/06/14. https://doi.org/10.1109/FENDT.2014.6928224

A new surface-wave EMAT design of enhanced transduction efficiency. / Kang, Lei; Pan, Feng; Su, Riliang et al.
FENDT 2014 - Proceedings, 2014 IEEE Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, Increasingly Perfect NDT/E. ed. / Qinxue Pan; Chunguang Xu; Liu Yang. Institute of Electrical and Electronics Engineers Inc., 2014. p. 9-13 6928224.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - One of the main drawbacks of EMATs is their inefficiency in generating ultrasounds. To solve this problem, a new surface-wave EMAT design, whose magnet width is less than the coil, is proposed. The principle of the new EMAT is studied based on finite element simulation, which indicates that the EMAT is more efficient by taking advantage of both horizontal and vertical magnetic fields of the magnet. Experiment verified that the amplitude of the ultrasonic signal generated by the EMAT has been enhanced by about 53.7%. The potentials and limitations of the new design have also been discussed.

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Kang L, Pan F, Su R, Zhang C, Dai J. A new surface-wave EMAT design of enhanced transduction efficiency. In Pan Q, Xu C, Yang L, editors, FENDT 2014 - Proceedings, 2014 IEEE Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, Increasingly Perfect NDT/E. Institute of Electrical and Electronics Engineers Inc. 2014. p. 9-13. 6928224 doi: 10.1109/FENDT.2014.6928224