Inspection of Copper Heat Exchanger Tubes Using HTS-SQUID
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概要
- 論文の詳細を見る
Experiments of nondestructive inspection (NDI) on copper heat exchanger tubes using an HTS-SQUID have been conducted. An eddy-current-based NDI system using HTS-SQUID gradiometer cooled using a cryocooler was developed for the detection of micro flaws on thin copper tubes 6.35 mm in diameter and 0.825 mm in thickness. With an excitation field of 1.6μT at 5 kHz, a 30-um-depth flaw was successfully detected by the system, where the conventional NDI techniques would fail to detect. Numerical simulations were also investigated to know how many sensors would be required for inspection around a whole circumference of a copper tube.
- 社団法人電子情報通信学会の論文
- 2005-02-04
著者
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TANAKA Saburo
Department of Ecological Engineering, Toyohashi University of Technology
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Tanaka S
Department Of Ecological Engineering Toyohashi University Of Technology
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Tanaka Saburo
Toyohashi University Of Technology
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HATSUKADE Yoshimi
Department of Ecological Engineering, Toyohashi University of Technology
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KOSUGI Akifumi
Department of Ecological Engineering, Toyohashi University of Technology
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HATSUKADE Yoshimi
Toyohashi University of Technology
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Kosugi Akifumi
Department Of Ecological Engineering Toyohashi University Of Technology
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Hatsukade Y
Department Of Ecological Engineering Toyohashi University Of Technology
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