A COMPARISON OF THE CRYOGENIC CURRENT COMPARATOR AND THE JOSEPHSON POTENTIOMETER IN RESISTANCE BRIDGES USING THEIR FIGURES OF MERIT

Authors
GUTMANN P
Citation
P. Gutmann, A COMPARISON OF THE CRYOGENIC CURRENT COMPARATOR AND THE JOSEPHSON POTENTIOMETER IN RESISTANCE BRIDGES USING THEIR FIGURES OF MERIT, IEEE transactions on instrumentation and measurement, 42(2), 1993, pp. 385-390
Citations number
10
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
IEEE transactions on instrumentation and measurement → ACNP
ISSN journal
00189456
Volume
42
Issue
2
Year of publication
1993
Pages
385 - 390
Database
ISI
SICI code
0018-9456(1993)42:2<385:ACOTCC>2.0.ZU;2-M
Abstract
The introduction of nearly error-free dc quantum standards of voltage and ohm is a challenge for precision metrology to improve the precisio n of measurements. Therefore, the principles and the performance of dc resistance bridges with the cryogenic current comparator and the Jose phson potentiometer are discussed and their figures of merit are estab lished, showing the present state of the art and the limitations given by the noise of the detectors and the quality of available resistance standards.