Study on improvement of the piezoelectric properties of acoustic emission sensor to be used for superconducting application systems

K. J. Kim; J. H. Kim; J. B. Song; J. H. Paik; J. Y. Jang; T. K. Ko; H. G. Lee

Study on improvement of the piezoelectric properties of acoustic emission sensor to be used for superconducting application systems

K. J. Kim, J. H. Kim, J. B. Song, J. H. Paik, J. Y. Jang, T. K. Ko, H. G. Lee

Department of Materials Science and Engineering

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

Abstract

Acoustic emission (AE) signal from an HTS tape has a low signal to noise ratio, due to th e large amount of noise caused by the boiling of the liquid cryogen or mechanical vibration from the cryo -cooler. In an attempt to improve the sensitivity of the AE sensor, Pb(Zr_0.54Ti_0.46)O₃ + 0.2 wt% Cr₂O₃ + 1.0 wt.% ND₂O₅ ceramics sintered at 1200°C was sy nthesized. In addition, the resonance (f_r) and anti-res onance frequencies (f_a) were measured using the spe cimens with various thicknesses (1.0, 1.5, 2.0, 2.5 an d 3.0 mm). According to the test results, large AE s ignals with high frequencies were obtained from the AE sensor fabricated using a piezoelectric disc with a thinner thickness.

Original language	English
Pages (from-to)	44-48
Number of pages	5
Journal	Journal of the Korea Institute of Applied Superconductivity and Cryogenics
Volume	12
Issue number	3
Publication status	Published - 2010 Sept

Keywords

Acoustic e mission (AE)
Piezoelectric
Superconductor

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Cite this

@article{d384a0c2d7394803ad6919fa7f6beec3,

title = "Study on improvement of the piezoelectric properties of acoustic emission sensor to be used for superconducting application systems",

abstract = "Acoustic emission (AE) signal from an HTS tape has a low signal to noise ratio, due to th e large amount of noise caused by the boiling of the liquid cryogen or mechanical vibration from the cryo -cooler. In an attempt to improve the sensitivity of the AE sensor, Pb(Zr0.54Ti0.46)O3 + 0.2 wt% Cr2O3 + 1.0 wt.% ND2O5 ceramics sintered at 1200°C was sy nthesized. In addition, the resonance (fr) and anti-res onance frequencies (fa) were measured using the spe cimens with various thicknesses (1.0, 1.5, 2.0, 2.5 an d 3.0 mm). According to the test results, large AE s ignals with high frequencies were obtained from the AE sensor fabricated using a piezoelectric disc with a thinner thickness.",

keywords = "Acoustic e mission (AE), Piezoelectric, Superconductor",

author = "Kim, {K. J.} and Kim, {J. H.} and Song, {J. B.} and Paik, {J. H.} and Jang, {J. Y.} and Ko, {T. K.} and Lee, {H. G.}",

year = "2010",

month = sep,

language = "English",

volume = "12",

pages = "44--48",

journal = "Progress in Superconductivity and Cryogenics (PSAC)",

issn = "1229-3008",

publisher = "Korea Institute of Applied Superconductivity and Cryogenics",

number = "3",

}

TY - JOUR

T1 - Study on improvement of the piezoelectric properties of acoustic emission sensor to be used for superconducting application systems

AU - Kim, K. J.

AU - Kim, J. H.

AU - Song, J. B.

AU - Paik, J. H.

AU - Jang, J. Y.

AU - Ko, T. K.

AU - Lee, H. G.

PY - 2010/9

Y1 - 2010/9

N2 - Acoustic emission (AE) signal from an HTS tape has a low signal to noise ratio, due to th e large amount of noise caused by the boiling of the liquid cryogen or mechanical vibration from the cryo -cooler. In an attempt to improve the sensitivity of the AE sensor, Pb(Zr0.54Ti0.46)O3 + 0.2 wt% Cr2O3 + 1.0 wt.% ND2O5 ceramics sintered at 1200°C was sy nthesized. In addition, the resonance (fr) and anti-res onance frequencies (fa) were measured using the spe cimens with various thicknesses (1.0, 1.5, 2.0, 2.5 an d 3.0 mm). According to the test results, large AE s ignals with high frequencies were obtained from the AE sensor fabricated using a piezoelectric disc with a thinner thickness.

AB - Acoustic emission (AE) signal from an HTS tape has a low signal to noise ratio, due to th e large amount of noise caused by the boiling of the liquid cryogen or mechanical vibration from the cryo -cooler. In an attempt to improve the sensitivity of the AE sensor, Pb(Zr0.54Ti0.46)O3 + 0.2 wt% Cr2O3 + 1.0 wt.% ND2O5 ceramics sintered at 1200°C was sy nthesized. In addition, the resonance (fr) and anti-res onance frequencies (fa) were measured using the spe cimens with various thicknesses (1.0, 1.5, 2.0, 2.5 an d 3.0 mm). According to the test results, large AE s ignals with high frequencies were obtained from the AE sensor fabricated using a piezoelectric disc with a thinner thickness.

KW - Acoustic e mission (AE)

KW - Piezoelectric

KW - Superconductor

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UR - http://www.scopus.com/inward/citedby.url?scp=78651547595&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:78651547595

SN - 1229-3008

VL - 12

SP - 44

EP - 48

JO - Progress in Superconductivity and Cryogenics (PSAC)

JF - Progress in Superconductivity and Cryogenics (PSAC)

IS - 3

ER -

Study on improvement of the piezoelectric properties of acoustic emission sensor to be used for superconducting application systems

Abstract

Keywords

ASJC Scopus subject areas

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