A Traveling SQUID Magnetic Imaging System and Its Application for Nondestructive Testing
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- ISAWA Kazuyuki
- R & D Center, Tohoku Electric Power Co., Inc.
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- NAKAYAMA Satoshi
- SII NanoTechnology Inc.
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- MOROOKA Toshimitsu
- SII NanoTechnology Inc.
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- IKEDA Masanori
- SII NanoTechnology Inc.
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- TAKAGI Sakae
- R & D Center, Tohoku Electric Power Co., Inc.
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- CHINONE Kazuo
- SII NanoTechnology Inc.
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- TOSAKA Shigeru
- R & D Center, Tohoku Electric Power Co., Inc.
Bibliographic Information
- Other Title
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- 自走式SQUIDによる磁気イメージング装置とその非破壊検査への応用
- ジソウシキ SQUID ニ ヨル ジキ イメージング ソウチ ト ソノ ヒハカイ ケンサ エ ノ オウヨウ
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Description
We have developed a “traveling” superconducting quantum interference device (SQUID) magnetic imaging system for practical nondestructive testing (NDT). For years it has been widely acknowledged that DC-SQUID sensors are adversely affected by ambient noise (e.g., earth's magnetic field), therefore they are not effective when applied to sense large areas through self-propelling motion. We recently succeeded in developing an advanced SQUID magnetic imaging system in which the SQUID sensor continuously travels back and forth by itself over the surface of an object being tested without using magnetic shielding. Technically, the self-propelled scheme is useful to enlarge the available scanning area of SQUID-NDT without limitation. In order to demonstrate the capability, we represent data relating to the detection of ferromagnetism due to plastic deformation by tensile testing using type-304 austenitic stainless steel. We also found that the traveling SQUID system developed is useful for evaluating artificial internal cracks embedded in austenitic welds.
Journal
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- TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)
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TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 39 (10), 488-494, 2004
CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN
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Keywords
Details 詳細情報について
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- CRID
- 1390001204614798336
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- NII Article ID
- 10013394392
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- NII Book ID
- AN00333419
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- COI
- 1:CAS:528:DC%2BD2cXhtVerurfE
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- ISSN
- 18800408
- 03892441
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- NDL BIB ID
- 7131170
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed