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

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-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.

原文英語
頁(從 - 到)2637-2638
頁數2
期刊Physica C: Superconductivity and its applications
341-348 (IV)
DOIs
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 202000 二月 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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