Thin-film cryogenic current comparator

Authors
Seppa, H Satrapinksi, A Kiviranta, M Virkki, V
Citation
H. Seppa et al., Thin-film cryogenic current comparator, IEEE INSTR, 48(2), 1999, pp. 365-369
Citations number
3
Categorie Soggetti
Instrumentation & Measurement
Journal title
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
ISSN journal
00189456 → ACNP
Volume
48
Issue
2
Year of publication
1999
Pages
365 - 369
Database
ISI
SICI code
0018-9456(199904)48:2<365:TCCC>2.0.ZU;2-A
Abstract
We analyze a thin-film cryogenic current comparator (CCC) intended to be us ed in ac measurements. Our analysis shows that by calibrating the de ratio error of the thin-film CCC against a conventional CCC, it can be used up to 10 kHz as a sensitive and highly accurate current comparator. We have fabr icated a practical 1:1 planar CCC integrated with a low-noise SQUID magneto meter. The preliminary experiments obtained from the 1:1 comparator are des cribed.