AN AUTOMATIC-APPARATUS FOR MEASUREMENTS OF CRITICAL-CURRENT UP TO 30 A IN OXIDE SUPERCONDUCTORS AND SOME RESULTS

Authors
VANOLO M GIRAUDI D PAVESE F
Citation
M. Vanolo et al., AN AUTOMATIC-APPARATUS FOR MEASUREMENTS OF CRITICAL-CURRENT UP TO 30 A IN OXIDE SUPERCONDUCTORS AND SOME RESULTS, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 19(8-9), 1997, pp. 1477-1482
Citations number
6
Categorie Soggetti
Physics
Journal title
Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics → ACNP
ISSN journal
03926737
Volume
19
Issue
8-9
Year of publication
1997
Pages
1477 - 1482
Database
ISI
SICI code
0392-6737(1997)19:8-9<1477:AAFMOC>2.0.ZU;2-A
Abstract
An apparatus is described which was designed for fast and accurate mea surements of critical current up to 30 A in oxide superconductors. It is battery based, for voltage noise minimization, which allows the use of the 0.1 mu V.cm(-1) criterion in short samples and makes use of al l-solid-state switching. It is designed for fast (1 s) static curl ent measurements and provides current reversal for ther mal e.m.f. compen sation. Results are reported and commented of tests made on strips and tubes of stainless steel coated with thick films of high-T-c supercon ductors.