A Magnetic Curve Tracer
- 1 January 1931
- journal article
- website
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Bell System Technical Journal
- Vol. 10 (1) , 20-32
- https://doi.org/10.1002/j.1538-7305.1931.tb01260.x
Abstract
An apparatus for photographically recording hysteresis loops and initial magnetization curves is described. It employs a rotating drum and a fluxmeter, the restoring torque of the latter being completely counter-balanced by a photoelectric cell arrangement. With this apparatus curves may be taken so slowly that eddy currents are negligible. The accuracy of the instrument is intrinsically as great as that of a ballistic galvanometer. An analysis of sources of error is included.Keywords
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