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

^*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 › 會議論文 › 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 11月
事件	International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI - Houston, TX, USA 持續時間: 2000 2月 20 → 2000 2月 25

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(00)01430-1

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title = "Nondestructive evaluation of flaws using SQUIDs",

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",

year = "2000",

month = nov,

doi = "10.1016/S0921-4534(00)01430-1",

language = "English",

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TY - JOUR

T1 - Nondestructive evaluation of flaws using SQUIDs

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

PY - 2000/11

Y1 - 2000/11

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0342961948

UR - https://www.scopus.com/inward/citedby.url?scp=0342961948&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(00)01430-1

DO - 10.1016/S0921-4534(00)01430-1

M3 - Conference article

AN - SCOPUS:0342961948

SN - 0921-4534

VL - 341-348 (IV)

SP - 2637

EP - 2638

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

T2 - International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI

Y2 - 20 February 2000 through 25 February 2000

ER -

Nondestructive evaluation of flaws using SQUIDs

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