Numéro
J. Phys. IV France
Volume 06, Numéro C3, Avril 1996
WOLTE 2
Proceedings of the Second European Workshop on Low Temperature Electronics
Page(s) C3-367 - C3-372
DOI https://doi.org/10.1051/jp4:1996356
WOLTE 2
Proceedings of the Second European Workshop on Low Temperature Electronics

J. Phys. IV France 06 (1996) C3-367-C3-372

DOI: 10.1051/jp4:1996356

High Tc SQUIDs for Unshielded Measuring in Disturbed Environments

V. Schultze, R. Ijsselsteijn, R. Stolz and V. Zakosarenko

Institut für Physikalische Hochtechnologie e.V., PF 100239, 07702 Jena, Germany


Abstract
Directly coupled dc SQUID gradiometers on the basis of YBa2Cu3O7-x for unshielded NDE measurements are investigated. The influence of different SQUID layout parameters on the field sensitivity is shown. A sensitivity of 500 fT/(cm.√Hz) is achieved with a baseline of 3.6 mm. A slit in an aluminium plate was detected in an demonstration of NDE in 1 cm depth with eddy current method.



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