Detection of metal deformation using a high-T-c rf SQUID planar gradiometer

Citation
Df. He et M. Yoshizawa, Detection of metal deformation using a high-T-c rf SQUID planar gradiometer, PHYSICA C, 357, 2001, pp. 1466-1468
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
357
Year of publication
2001
Part
2
Pages
1466 - 1468
Database
ISI
SICI code
0921-4534(200108)357:<1466:DOMDUA>2.0.ZU;2-Y
Abstract
Using a high-T-c radio frequency superconducting quantum interference devic e planar gradiometer and eddy-current method, artificial deformation and ho le defects on an aluminum plate were successfully detected in both the ampl itude and phase signals, even though they were covered by 2 or 4 mm aluminu m plate. To reduce the influence of boundary effect of metal structure, a d ifferential method was used. All the experiments were done in our laborator y of unshielded environment. (C) 2001 Elsevier Science B.V. All rights rese rved.