Rotating Commutator High‐Sensitivity Fluxmeter
作者:
R. L. Horst,
Paul E. Oberg,
期刊:
Review of Scientific Instruments
(AIP Available online 1962)
卷期:
Volume 33,
issue 10
页码: 1058-1062
ISSN:0034-6748
年代: 1962
DOI:10.1063/1.1717682
出版商: AIP
数据来源: AIP
摘要:
A commutator driven by a 1800‐rpm motor switches and restores the state of a magnetic sample once each revolution. An overdamped ballistic galvanometer integrates the induced voltage and displays a flux change due to the applied switching pulse. Since there is one flux change per revolution, a large number of revolutions results in a large deflection due to the addition of all the flux changes. This fluxmeter has a sensitivity of 4.61 Mx‐turns/cm/min of operating time. With this fluxmeter it is possible to measure magnetization curves and hysteresis loops of very small magnetic samples. The experimental error in the flux measurement is 4%.
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