Resistance Comparisons at Nanovolt Levels Using an Isolating Current Ratio Generator
作者:
L. Crovini,
C. G. M. Kirby,
期刊:
Review of Scientific Instruments
(AIP Available online 1970)
卷期:
Volume 41,
issue 4
页码: 493-497
ISSN:0034-6748
年代: 1970
DOI:10.1063/1.1684561
出版商: AIP
数据来源: AIP
摘要:
A circuit has been developed for the generation of isolated currents having precisely defined ratios. It can be used to compare resistances with accuracies up to 0.03 ppm and with sensitivities as low as 1 nV. When comparisons are made using low frequency currents, thermal emf's are eliminated. Several variations of the circuit which can be made easily in the laboratory are described.
点击下载:
PDF
(367KB)
返 回