Nondestructive evaluation of flaws using SQUIDs

J. T. Jeng; H. E. Horng; Chao Hsiang Chen; J. H. Chen; H. C. Yang

doi:10.1016/S0921-4534(00)01430-1

Nondestructive evaluation of flaws using SQUIDs

J. T. Jeng, H. E. Horng, Chao Hsiang Chen, J. H. Chen, H. C. Yang

光電工程學士學位學程

研究成果: 雜誌貢獻 › Conference article › 同行評審

5 引文斯高帕斯（Scopus）

摘要

Using high-T_c SQUIDs, we have designed a nondestructive evaluation system to probe buried flaws. The frequency of the excitation magnetic fields was varied from 10 to 800 Hz and the magnetic fields generated from the eddy current was lock-in detected. The SQUIDs output data revealed the most effective excitation frequencies for the flaws with different depths and widths. The signal-to-noise ratio of the deep flaws can be further enhanced either by using higher excitation fields or using the SQUIDs with higher low-frequency sensitivity.

原文	英語
頁（從 - 到）	2637-2638
頁數	2
期刊	Physica C: Superconductivity and its applications
卷	341-348 (IV)
DOIs	https://doi.org/10.1016/S0921-4534(00)01430-1
出版狀態	已發佈 - 2000 十一月
事件	International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI - Houston, TX, USA 持續時間: 2000 二月 20 → 2000 二月 25

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(00)01430-1

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引用此

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abstract = "Using high-Tc SQUIDs, we have designed a nondestructive evaluation system to probe buried flaws. The frequency of the excitation magnetic fields was varied from 10 to 800 Hz and the magnetic fields generated from the eddy current was lock-in detected. The SQUIDs output data revealed the most effective excitation frequencies for the flaws with different depths and widths. The signal-to-noise ratio of the deep flaws can be further enhanced either by using higher excitation fields or using the SQUIDs with higher low-frequency sensitivity.",

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

note = "Funding Information: *Supported by the National Science Council of R.O.C under grant No. NSC-89-2112-M-003-012 and No. NSC-89-2112-M-002-029; International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI ; Conference date: 20-02-2000 Through 25-02-2000",

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AU - Jeng, J. T.

AU - Horng, H. E.

AU - Chen, Chao Hsiang

AU - Chen, J. H.

AU - Yang, H. C.

N1 - Funding Information: *Supported by the National Science Council of R.O.C under grant No. NSC-89-2112-M-003-012 and No. NSC-89-2112-M-002-029

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Y1 - 2000/11

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