Single sensor high-temperature superconducting axial gradiometer with thick film pick-up loops

Author

Haining, S. ; Romans, E.J. ; Pegrum, C.M. ; Donaldson, G.B. ; Hao, L. ; Macfarlane, J.C.

Author_Institution

Dept. of Phys., Univ. of Strathclyde, Glasgow, UK

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

769

Lastpage

772

Abstract

A high-temperature superconducting first-order axial gradiometer with thick film YBa₂Cu₃O_7-δ pick-up loops inductively coupled to a thin film YBa₂Cu₃O_7-δ superconducting quantum interference device magnetometer has been designed, fabricated and characterized. The gradiometer has a baseline of 79 mm, an estimated intrinsic system balance of 1:480 for uniform axial magnetic fields and an estimated axial magnetic field gradient sensitivity of 70 fT/(cm√Hz) at 1 kHz, in magnetic shielding.

Keywords

SQUID magnetometers; barium compounds; high-temperature superconductors; superconducting thin films; yttrium compounds; 1 kHz; 79 mm; SQUID gradiometers; YBa₂Cu₃O_7-δ; YBa₂Cu₃O₇; high-temperature superconducting first-order axial gradiometer; single sensor; superconducting devices; thick film pick-up loops; thin film superconducting quantum interference device magnetometer; Couplings; High temperature superconductors; Magnetic shielding; SQUIDs; Superconducting devices; Superconducting films; Superconducting thin films; Thick film sensors; Thick films; Thin film devices; SQUID gradiometers; SQUIDs; superconducting devices;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.850050

Filename

1439751