A Novel Design of Window Function Modulated Meander-line-coils EMATs for Unidirectional Rayleigh Waves Generation and Sidelobes SuppressionCitation formats

  • External authors:
  • Yuedong Xie
  • Jiyao Li
  • Pu Huang
  • Le Zhang
  • Wenbin Tian
  • Xin Zhao
  • Zhilin Huo
  • Zenghua Liu
  • Shupei Wang
  • Ruochen Huang
  • Lijun Xu

Standard

A Novel Design of Window Function Modulated Meander-line-coils EMATs for Unidirectional Rayleigh Waves Generation and Sidelobes Suppression. / Xie, Yuedong; Li, Jiyao; Huang, Pu; Zhang, Le; Tian, Wenbin; Lu, Mingyang; Zhao, Xin; Huo, Zhilin; Liu, Zenghua; Wang, Shupei; Huang, Ruochen; Yin, Wuliang; Peyton, Anthony; Xu, Lijun.

In: NDT & E International, Vol. 123, 102501, 21.07.2021.

Research output: Contribution to journalLetterpeer-review

Harvard

Xie, Y, Li, J, Huang, P, Zhang, L, Tian, W, Lu, M, Zhao, X, Huo, Z, Liu, Z, Wang, S, Huang, R, Yin, W, Peyton, A & Xu, L 2021, 'A Novel Design of Window Function Modulated Meander-line-coils EMATs for Unidirectional Rayleigh Waves Generation and Sidelobes Suppression', NDT & E International, vol. 123, 102501. https://doi.org/10.1016/j.ndteint.2021.102501

APA

Xie, Y., Li, J., Huang, P., Zhang, L., Tian, W., Lu, M., Zhao, X., Huo, Z., Liu, Z., Wang, S., Huang, R., Yin, W., Peyton, A., & Xu, L. (2021). A Novel Design of Window Function Modulated Meander-line-coils EMATs for Unidirectional Rayleigh Waves Generation and Sidelobes Suppression. NDT & E International, 123, [102501]. https://doi.org/10.1016/j.ndteint.2021.102501

Vancouver

Author

Xie, Yuedong ; Li, Jiyao ; Huang, Pu ; Zhang, Le ; Tian, Wenbin ; Lu, Mingyang ; Zhao, Xin ; Huo, Zhilin ; Liu, Zenghua ; Wang, Shupei ; Huang, Ruochen ; Yin, Wuliang ; Peyton, Anthony ; Xu, Lijun. / A Novel Design of Window Function Modulated Meander-line-coils EMATs for Unidirectional Rayleigh Waves Generation and Sidelobes Suppression. In: NDT & E International. 2021 ; Vol. 123.

Bibtex

@article{b6fadb365d1041feae8f5e2e0b742a78,
title = "A Novel Design of Window Function Modulated Meander-line-coils EMATs for Unidirectional Rayleigh Waves Generation and Sidelobes Suppression",
abstract = "A new design of Window Function modulated electromagnetic acoustic transducers (EMATs) to generate unidirectional Rayleigh waves is proposed. The novel EMATs, Rectangular-Window-Meander-Line-Coil EMATs (RWMLC-EMATs) and Kaiser-Window-Meander-Line-Coil EMATs (KWMLC-EMATs), contain two variable length meander line coils with a spacing of one quarter of Rayleigh waves{\textquoteright} wavelength; the excitation signals for these two coils have a phase difference of 90 0. The structure of the variable wire length determines the level of the sidelobes suppression; the structure of two meander line coils combined with the excitation signals with a phase difference of 90 0 determine that Rayleigh waves only propagate along one direction. RWMLC-EMATs and KWMLC-EMATs are analyzed via a wholly analytical method and are validated with experiments, which proves the feasibility of the proposed EMATs structure. In addition, the effect of the wire step and the longest wire length are investigated analytically and experimentally. Results indicate that, wire step mainly affects the suppressed level of sidelobes – a large wire step leads to a small suppressed level of sidelobes. This work can be used for Rayleigh waves EMATs design and optimization to improve their defect detection capability. ",
keywords = "Beam directivity, Electromagnetic acoustic transducers (EMATs), Sidelobes suppression, Unidirectional Rayleigh waves, Window function modulation",
author = "Yuedong Xie and Jiyao Li and Pu Huang and Le Zhang and Wenbin Tian and Mingyang Lu and Xin Zhao and Zhilin Huo and Zenghua Liu and Shupei Wang and Ruochen Huang and Wuliang Yin and Anthony Peyton and Lijun Xu",
note = "Funding Information: This work was supported in part by the National Natural Science Foundation of China under Grant 61901022 and the Fundamental Research Funds for the Central Universities KG12-1124-01 . Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",
year = "2021",
month = jul,
day = "21",
doi = "10.1016/j.ndteint.2021.102501",
language = "English",
volume = "123",
journal = "NDT and E International",
issn = "0963-8695",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - A Novel Design of Window Function Modulated Meander-line-coils EMATs for Unidirectional Rayleigh Waves Generation and Sidelobes Suppression

AU - Xie, Yuedong

AU - Li, Jiyao

AU - Huang, Pu

AU - Zhang, Le

AU - Tian, Wenbin

AU - Lu, Mingyang

AU - Zhao, Xin

AU - Huo, Zhilin

AU - Liu, Zenghua

AU - Wang, Shupei

AU - Huang, Ruochen

AU - Yin, Wuliang

AU - Peyton, Anthony

AU - Xu, Lijun

N1 - Funding Information: This work was supported in part by the National Natural Science Foundation of China under Grant 61901022 and the Fundamental Research Funds for the Central Universities KG12-1124-01 . Publisher Copyright: © 2021 Elsevier Ltd

PY - 2021/7/21

Y1 - 2021/7/21

N2 - A new design of Window Function modulated electromagnetic acoustic transducers (EMATs) to generate unidirectional Rayleigh waves is proposed. The novel EMATs, Rectangular-Window-Meander-Line-Coil EMATs (RWMLC-EMATs) and Kaiser-Window-Meander-Line-Coil EMATs (KWMLC-EMATs), contain two variable length meander line coils with a spacing of one quarter of Rayleigh waves’ wavelength; the excitation signals for these two coils have a phase difference of 90 0. The structure of the variable wire length determines the level of the sidelobes suppression; the structure of two meander line coils combined with the excitation signals with a phase difference of 90 0 determine that Rayleigh waves only propagate along one direction. RWMLC-EMATs and KWMLC-EMATs are analyzed via a wholly analytical method and are validated with experiments, which proves the feasibility of the proposed EMATs structure. In addition, the effect of the wire step and the longest wire length are investigated analytically and experimentally. Results indicate that, wire step mainly affects the suppressed level of sidelobes – a large wire step leads to a small suppressed level of sidelobes. This work can be used for Rayleigh waves EMATs design and optimization to improve their defect detection capability.

AB - A new design of Window Function modulated electromagnetic acoustic transducers (EMATs) to generate unidirectional Rayleigh waves is proposed. The novel EMATs, Rectangular-Window-Meander-Line-Coil EMATs (RWMLC-EMATs) and Kaiser-Window-Meander-Line-Coil EMATs (KWMLC-EMATs), contain two variable length meander line coils with a spacing of one quarter of Rayleigh waves’ wavelength; the excitation signals for these two coils have a phase difference of 90 0. The structure of the variable wire length determines the level of the sidelobes suppression; the structure of two meander line coils combined with the excitation signals with a phase difference of 90 0 determine that Rayleigh waves only propagate along one direction. RWMLC-EMATs and KWMLC-EMATs are analyzed via a wholly analytical method and are validated with experiments, which proves the feasibility of the proposed EMATs structure. In addition, the effect of the wire step and the longest wire length are investigated analytically and experimentally. Results indicate that, wire step mainly affects the suppressed level of sidelobes – a large wire step leads to a small suppressed level of sidelobes. This work can be used for Rayleigh waves EMATs design and optimization to improve their defect detection capability.

KW - Beam directivity

KW - Electromagnetic acoustic transducers (EMATs)

KW - Sidelobes suppression

KW - Unidirectional Rayleigh waves

KW - Window function modulation

U2 - 10.1016/j.ndteint.2021.102501

DO - 10.1016/j.ndteint.2021.102501

M3 - Letter

VL - 123

JO - NDT and E International

JF - NDT and E International

SN - 0963-8695

M1 - 102501

ER -