한국초전도학회:학술대회논문집
- 한국초전도학회 1999년도 High Temperature Superconductivity Vol.IX
- /
- Pages.120-123
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- 1999
고온 초전도 Electronic Gradiometer의 제작과 NDE system 에의 응용
Fabrication of an HTS DC SQUID Electronic Gradiometer and it's application in NDE system
-
Kim, Jin-Young
(Department of Physics of University of Inchon)
;
- Han, Sung-Gun (Department of Physics of University of Inchon) ;
-
Kang, Joon-Hee
(Department of Physics of University of Inchon)
;
- Lee, Eun-Hong (Samsung Institute of Technology) ;
- Song, I-Hun (Samsung Institute of Technology)
- 발행 : 1999.08.18
초록
We designed and constructed a non-destructive evaluation system using an HTS DC SQUID electronic gradiometer. Our DC SQUID electronic gradiometer is composed of two DC SQUID magnetometers. The system included a non-magnetic stainless steel cryostat and a set of coaxial exciting coils, which were used to induce an eddy current in the test material. We also have calculated the eddy current density produced by an exciting coil in any direction of the testing object. We could compute the eddy current density distribution in 3D. The SQUIDs were computer controlled and the output data from the electronic gradiometer was obtained by using a Labview software.
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