Robot-Based NDE System Using 3D-Mobile HTS-SQUID

A novel HTS-SQUID gradiometer with ramp-edge Josephson junctions (JJs) composed of SmBa 2 Cu 3 O y base-electrode and La 01 Er 0.95 Ba 1.95 Cu 3 O y counter-electrode was developed. The robustness of the gradiometer in AC field perpendicular to the device plane was investigated. In an AC field of le...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2009-06, Vol.19 (3), p.796-800
Main Authors: Hatsukade, Y., Yotsugi, K., Kanai, S., Hayashi, K., Wakana, H., Tarutani, Y., Tanabe, K., Tanaka, S.
Format: Article
Language:English
Subjects:
Applied sciences
BICRYSTALS
COPPER OXIDE
Electrical engineering. Electrical power engineering
Electromagnets
Electronics
Exact sciences and technology
HTS-SQUID
Josephson junctions
Jumping
Magnetic fields
Magnetic measurements
Magnetic sensors
Magnetic shielding
Noise robustness
Nondestructive testing
ramp-edge Josephson junctions
robot-based NDE system
ROBOTS
Robustness
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
SHIELDS (MAGNETIC)
SQUIDs
Steel
Superconducting devices
SUPERCONDUCTIVITY
Testing, measurement, noise and reliability
THIN FILMS
Three dimensional
Transistors
unshielded environment
Various equipment and components
Yttrium barium copper oxide
YTTRIUM OXIDE
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Summary:A novel HTS-SQUID gradiometer with ramp-edge Josephson junctions (JJs) composed of SmBa 2 Cu 3 O y base-electrode and La 01 Er 0.95 Ba 1.95 Cu 3 O y counter-electrode was developed. The robustness of the gradiometer in AC field perpendicular to the device plane was investigated. In an AC field of less than 2.8 mT pp at 100 Hz, flux-trapping, jumping and increase in noise did not happen in the gradiometer, while a traditional HTS-SQUID gradiometer with YBa 2 Cu 3 O 7-x thin film and bicrystal JJs with the same dimension as the novel gradiometer could not be operated properly in an AC field of about several tens nT pp . A robot-based NDE system utilizing the novel HTS-SQUID gradiometer was developed. The system could move the gradiometer three-dimensionally (3D) in an unshielded environment without magnetic shielding or compensation technique. Eddy-current-based detection of a through hole in magnetized stainless steel board was demonstrated by the robot-based HTS-SQUID NDE system.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2009.2019539