Development of Three-Channel HTS-SQUID Inspection System for Orthotropic Steel Decks of Expressway Bridges

Akira Tsukamoto; Tsunehiro Hato; Seiji Adachi; Yasuo Oshikubo; Keiji Tsukada; Keiichi Tanabe

doi:10.1109/TASC.2019.2904478

Development of Three-Channel HTS-SQUID Inspection System for Orthotropic Steel Decks of Expressway Bridges

Akira Tsukamoto, Tsunehiro Hato, Seiji Adachi, Yasuo Oshikubo, Keiji Tsukada, Keiichi Tanabe

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We have developed a three-channel high-temperature superconductor (HTS) superconducting quantum interference device (SQUID) eddy current testing (ECT) system for detection of a fatigue crack which occurs in a steel deck plate used in expressway bridges. To avoid physical interference between adjacent channels, a dipole coil with compact design is employed. A field test using the three channel ECT system was performed on an expressway bridge having an orthotropic steel deck structure under traffic lane restrictions. Although a signal corresponding to existence of a fatigue crack was not detected due to a low occurrence rate of fatigue crack, we could demonstrate a stable and long-time operation in an urban area during the daytime and acquisition of correct data corresponding to some structural features of the expressway bridge.

Original language	English
Article number	8665920
Journal	IEEE Transactions on Applied Superconductivity
Volume	29
Issue number	5
DOIs	https://doi.org/10.1109/TASC.2019.2904478
Publication status	Published - Aug 2019
Externally published	Yes

Keywords

HTS-SQUID
current dipole
eddy current testing
fatigue crack
steel plate

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TASC.2019.2904478

Cite this

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title = "Development of Three-Channel HTS-SQUID Inspection System for Orthotropic Steel Decks of Expressway Bridges",

abstract = "We have developed a three-channel high-temperature superconductor (HTS) superconducting quantum interference device (SQUID) eddy current testing (ECT) system for detection of a fatigue crack which occurs in a steel deck plate used in expressway bridges. To avoid physical interference between adjacent channels, a dipole coil with compact design is employed. A field test using the three channel ECT system was performed on an expressway bridge having an orthotropic steel deck structure under traffic lane restrictions. Although a signal corresponding to existence of a fatigue crack was not detected due to a low occurrence rate of fatigue crack, we could demonstrate a stable and long-time operation in an urban area during the daytime and acquisition of correct data corresponding to some structural features of the expressway bridge.",

keywords = "HTS-SQUID, current dipole, eddy current testing, fatigue crack, steel plate",

author = "Akira Tsukamoto and Tsunehiro Hato and Seiji Adachi and Yasuo Oshikubo and Keiji Tsukada and Keiichi Tanabe",

note = "Funding Information: Manuscript received October 25, 2018; accepted February 7, 2019. Date of publication March 12, 2019; date of current version April 11, 2019. This work was supported by the “Cross-ministerial Strategic Innovation Promotion Program (SIP)” funded by the Japan Science and Technology Agency (JST). (Corresponding author: Akira Tsukamoto.) A. Tsukamoto, T. Hato, S. Adachi, Y. Oshikubo, and K. Tanabe are with the Superconducting Sensing Technology Association (SUSTERA), Yokohama 223-0051, Japan (e-mail:,tsukamot@sustera.or.jp). Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

year = "2019",

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doi = "10.1109/TASC.2019.2904478",

language = "English",

volume = "29",

journal = "IEEE Transactions on Applied Superconductivity",

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AU - Oshikubo, Yasuo

AU - Tsukada, Keiji

AU - Tanabe, Keiichi

N1 - Funding Information: Manuscript received October 25, 2018; accepted February 7, 2019. Date of publication March 12, 2019; date of current version April 11, 2019. This work was supported by the “Cross-ministerial Strategic Innovation Promotion Program (SIP)” funded by the Japan Science and Technology Agency (JST). (Corresponding author: Akira Tsukamoto.) A. Tsukamoto, T. Hato, S. Adachi, Y. Oshikubo, and K. Tanabe are with the Superconducting Sensing Technology Association (SUSTERA), Yokohama 223-0051, Japan (e-mail:,tsukamot@sustera.or.jp). Publisher Copyright: © 2002-2011 IEEE.

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Development of Three-Channel HTS-SQUID Inspection System for Orthotropic Steel Decks of Expressway Bridges

Abstract

Keywords

ASJC Scopus subject areas

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