Fabrication of a high performance acoustic emission (AE) sensor to monitor and diagnose disturbances in HTS tapes and magnet systems

Ju Hyung Kim; Jung Bin Song; Young Hun Jeong; Young Jin Lee; Jong Hoo Paik; Woo Seok Kim; Haigun Lee

doi:10.1007/s12540-010-0115-7

Fabrication of a high performance acoustic emission (AE) sensor to monitor and diagnose disturbances in HTS tapes and magnet systems

Ju Hyung Kim, Jung Bin Song, Young Hun Jeong, Young Jin Lee, Jong Hoo Paik, Woo Seok Kim, Haigun Lee

Department of Materials Science and Engineering

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

3 Citations (Scopus)

Abstract

Conduction noise attenuation by magnetic composite sheets along a microstrip line has been analyzed by using an electromagnetic field simulator that employs the finite element method. The simulation model consists of a microstrip line with planar input/output ports and noise absorbing materials of large magnetic loss (magnetic composite sheets containing iron flake particles as absorbent fillers). The input port is excited by a TEM-mode wave with a characteristic impedance of 50 Ω. Reflection and transmission parameters (S₁₁ and S₂₁) and power loss are calculated as a function of frequency with variation of the sheet size and thickness. The simulated values are in good agreement with experimental results and the estimated size dependency of power absorption is consistent with transmission line theory. It is proposed that the simulation technique can be effectively used in the design and characterization of noise absorbing materials in high-frequency transmission lines.

Original language	English
Pages (from-to)	115-119
Number of pages	5
Journal	Metals and Materials International
Volume	16
Issue number	1
DOIs	https://doi.org/10.1007/s12540-010-0115-7
Publication status	Published - 2010 Feb

Keywords

Computer simulation
Electrical properties
Magnetic materials
Noise absorbers
Powder processing

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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10.1007/s12540-010-0115-7

Cite this

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title = "Fabrication of a high performance acoustic emission (AE) sensor to monitor and diagnose disturbances in HTS tapes and magnet systems",

abstract = "Conduction noise attenuation by magnetic composite sheets along a microstrip line has been analyzed by using an electromagnetic field simulator that employs the finite element method. The simulation model consists of a microstrip line with planar input/output ports and noise absorbing materials of large magnetic loss (magnetic composite sheets containing iron flake particles as absorbent fillers). The input port is excited by a TEM-mode wave with a characteristic impedance of 50 Ω. Reflection and transmission parameters (S11 and S21) and power loss are calculated as a function of frequency with variation of the sheet size and thickness. The simulated values are in good agreement with experimental results and the estimated size dependency of power absorption is consistent with transmission line theory. It is proposed that the simulation technique can be effectively used in the design and characterization of noise absorbing materials in high-frequency transmission lines.",

keywords = "Computer simulation, Electrical properties, Magnetic materials, Noise absorbers, Powder processing",

author = "Kim, {Ju Hyung} and Song, {Jung Bin} and Jeong, {Young Hun} and Lee, {Young Jin} and Paik, {Jong Hoo} and Kim, {Woo Seok} and Haigun Lee",

note = "Funding Information: This work was supported by a grant (No. R01-2006-000-10482-0) from the Basic Research Program of the Korea Science and Engineering Foundation.",

year = "2010",

month = feb,

doi = "10.1007/s12540-010-0115-7",

language = "English",

volume = "16",

pages = "115--119",

journal = "Metals and Materials International",

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T1 - Fabrication of a high performance acoustic emission (AE) sensor to monitor and diagnose disturbances in HTS tapes and magnet systems

AU - Kim, Ju Hyung

AU - Song, Jung Bin

AU - Jeong, Young Hun

AU - Lee, Young Jin

AU - Paik, Jong Hoo

AU - Kim, Woo Seok

AU - Lee, Haigun

N1 - Funding Information: This work was supported by a grant (No. R01-2006-000-10482-0) from the Basic Research Program of the Korea Science and Engineering Foundation.

PY - 2010/2

Y1 - 2010/2

N2 - Conduction noise attenuation by magnetic composite sheets along a microstrip line has been analyzed by using an electromagnetic field simulator that employs the finite element method. The simulation model consists of a microstrip line with planar input/output ports and noise absorbing materials of large magnetic loss (magnetic composite sheets containing iron flake particles as absorbent fillers). The input port is excited by a TEM-mode wave with a characteristic impedance of 50 Ω. Reflection and transmission parameters (S11 and S21) and power loss are calculated as a function of frequency with variation of the sheet size and thickness. The simulated values are in good agreement with experimental results and the estimated size dependency of power absorption is consistent with transmission line theory. It is proposed that the simulation technique can be effectively used in the design and characterization of noise absorbing materials in high-frequency transmission lines.

AB - Conduction noise attenuation by magnetic composite sheets along a microstrip line has been analyzed by using an electromagnetic field simulator that employs the finite element method. The simulation model consists of a microstrip line with planar input/output ports and noise absorbing materials of large magnetic loss (magnetic composite sheets containing iron flake particles as absorbent fillers). The input port is excited by a TEM-mode wave with a characteristic impedance of 50 Ω. Reflection and transmission parameters (S11 and S21) and power loss are calculated as a function of frequency with variation of the sheet size and thickness. The simulated values are in good agreement with experimental results and the estimated size dependency of power absorption is consistent with transmission line theory. It is proposed that the simulation technique can be effectively used in the design and characterization of noise absorbing materials in high-frequency transmission lines.

KW - Computer simulation

KW - Electrical properties

KW - Magnetic materials

KW - Noise absorbers

KW - Powder processing

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DO - 10.1007/s12540-010-0115-7

M3 - Article

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SN - 1598-9623

VL - 16

SP - 115

EP - 119

JO - Metals and Materials International

JF - Metals and Materials International

IS - 1

ER -

Fabrication of a high performance acoustic emission (AE) sensor to monitor and diagnose disturbances in HTS tapes and magnet systems

Abstract

Keywords

ASJC Scopus subject areas

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