Detection of 'hot spots' in HTS coils and test samples with acoustic emission signals

Haigun Lee; Ho Min Kim; Joseph Jankowski; Yukikazu Iwasa

doi:10.1109/TASC.2004.830559

Detection of 'hot spots' in HTS coils and test samples with acoustic emission signals

Haigun Lee, Ho Min Kim, Joseph Jankowski, Yukikazu Iwasa

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

21 Citations (Scopus)

Abstract

In this paper we report results of two series of experiments, one performed on a double-pancake coil wound with Bi2223/Ag tape and the other on coated YBCO samples to demonstrate that an acoustic emission (AE) technique is a promising diagnostic tool to detect the presence of a "hot spot" in HTS devices. The AE technique may be used as complement to standard voltage technique to facilitate early detection of the presence of a "hot spot" in HTS devices and thus help to protect the HTS devices from permanent damage.

Original language	English
Pages (from-to)	1298-1301
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	14
Issue number	2
DOIs	https://doi.org/10.1109/TASC.2004.830559
Publication status	Published - 2004 Jun
Externally published	Yes

Bibliographical note

Funding Information:
Manuscript received October 20, 2003. This work was supported in part by the Office of Energy Efficiency and Renewable Energy, U.S. Department of Energy.

Keywords

Acoustic emission (AE)
Bi2223/Ag coil
Detection of "hot spot" in superconductors
Protection
YBCO coated conductor

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/TASC.2004.830559

Cite this

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AU - Kim, Ho Min

AU - Jankowski, Joseph

AU - Iwasa, Yukikazu

N1 - Funding Information: Manuscript received October 20, 2003. This work was supported in part by the Office of Energy Efficiency and Renewable Energy, U.S. Department of Energy.

PY - 2004/6

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AB - In this paper we report results of two series of experiments, one performed on a double-pancake coil wound with Bi2223/Ag tape and the other on coated YBCO samples to demonstrate that an acoustic emission (AE) technique is a promising diagnostic tool to detect the presence of a "hot spot" in HTS devices. The AE technique may be used as complement to standard voltage technique to facilitate early detection of the presence of a "hot spot" in HTS devices and thus help to protect the HTS devices from permanent damage.

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KW - Bi2223/Ag coil

KW - Detection of "hot spot" in superconductors

KW - Protection

KW - YBCO coated conductor

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Detection of 'hot spots' in HTS coils and test samples with acoustic emission signals

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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