High-Tc SQUID magnetometers and gradiometers for NDE application

J. T. Jeng; H. E. Horng; H. C. Yang

doi:10.1016/S0921-4534(01)01148-0

High-T_c SQUID magnetometers and gradiometers for NDE application

J. T. Jeng, H. E. Horng, H. C. Yang^*

^*此作品的通信作者

光電工程學士學位學程

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

10 引文斯高帕斯（Scopus）

摘要

The performance of the superconducting quantum interference device (SQUID) nondestructive evaluation (NDE) system with a shielded magnetometer and unshielded gradiometers were investigated. In the magnetometer NDE system, the environmental noise was reduced with the SQUID seating inside a μ-metal cylinder, whereas the environmental noise was eliminated with electronic subtraction in the gradiometer NDE system. For the shielded magnetometer NDE system, the signal-to-noise ratio was improved with a higher excitation field to enhance the defect signal. For the gradiometer NDE system, the signal-to-noise ratio was improved as a result of the reduction of environmental noise. The performance of two SQUID NDE systems is compared and the results are discussed.

原文	英語
頁（從 - 到）	105-108
頁數	4
期刊	Physica C: Superconductivity and its applications
卷	368
發行號	1-4
DOIs	https://doi.org/10.1016/S0921-4534(01)01148-0
出版狀態	已發佈 - 2002 3月 1

ASJC Scopus subject areas

電子、光磁材料
凝聚態物理學
能源工程與電力技術
電氣與電子工程

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10.1016/S0921-4534(01)01148-0

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title = "High-Tc SQUID magnetometers and gradiometers for NDE application",

abstract = "The performance of the superconducting quantum interference device (SQUID) nondestructive evaluation (NDE) system with a shielded magnetometer and unshielded gradiometers were investigated. In the magnetometer NDE system, the environmental noise was reduced with the SQUID seating inside a μ-metal cylinder, whereas the environmental noise was eliminated with electronic subtraction in the gradiometer NDE system. For the shielded magnetometer NDE system, the signal-to-noise ratio was improved with a higher excitation field to enhance the defect signal. For the gradiometer NDE system, the signal-to-noise ratio was improved as a result of the reduction of environmental noise. The performance of two SQUID NDE systems is compared and the results are discussed.",

keywords = "Gradiometer, Magnetometer, SQUID NDE",

author = "Jeng, {J. T.} and Horng, {H. E.} and Yang, {H. C.}",

note = "Funding Information: The authors thank the Ministry of Education of the ROC for the financial support under the Program for Promoting University Academic Excellence.",

year = "2002",

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doi = "10.1016/S0921-4534(01)01148-0",

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T1 - High-Tc SQUID magnetometers and gradiometers for NDE application

AU - Jeng, J. T.

AU - Horng, H. E.

AU - Yang, H. C.

N1 - Funding Information: The authors thank the Ministry of Education of the ROC for the financial support under the Program for Promoting University Academic Excellence.

PY - 2002/3/1

Y1 - 2002/3/1

N2 - The performance of the superconducting quantum interference device (SQUID) nondestructive evaluation (NDE) system with a shielded magnetometer and unshielded gradiometers were investigated. In the magnetometer NDE system, the environmental noise was reduced with the SQUID seating inside a μ-metal cylinder, whereas the environmental noise was eliminated with electronic subtraction in the gradiometer NDE system. For the shielded magnetometer NDE system, the signal-to-noise ratio was improved with a higher excitation field to enhance the defect signal. For the gradiometer NDE system, the signal-to-noise ratio was improved as a result of the reduction of environmental noise. The performance of two SQUID NDE systems is compared and the results are discussed.

AB - The performance of the superconducting quantum interference device (SQUID) nondestructive evaluation (NDE) system with a shielded magnetometer and unshielded gradiometers were investigated. In the magnetometer NDE system, the environmental noise was reduced with the SQUID seating inside a μ-metal cylinder, whereas the environmental noise was eliminated with electronic subtraction in the gradiometer NDE system. For the shielded magnetometer NDE system, the signal-to-noise ratio was improved with a higher excitation field to enhance the defect signal. For the gradiometer NDE system, the signal-to-noise ratio was improved as a result of the reduction of environmental noise. The performance of two SQUID NDE systems is compared and the results are discussed.

KW - Gradiometer

KW - Magnetometer

KW - SQUID NDE

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High-Tc SQUID magnetometers and gradiometers for NDE application

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ASJC Scopus subject areas

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High-T_c SQUID magnetometers and gradiometers for NDE application