DocumentCode :
1000364
Title :
A magnetic amplifier for the visual presentation of low-frequency hysteresis loops of very small ferromagnetic samples
Author :
van der Heide, H.
Author_Institution :
Philips Research Labs., Eindhoven, the Netherlands
Volume :
1
Issue :
2
fYear :
1965
fDate :
6/1/1965 12:00:00 AM
Firstpage :
87
Lastpage :
90
Abstract :
This paper describes a magnetic amplifier based on the principle of permeability tuning, and intended for the amplification of small, low-impedance signals obtained from a small ferromagnetic sample (e.g., a ferrite memory core or a thin film). The apparatus is able to produce a good display of a flux as low as \\Delta \\phi = 10^{-12} V/s at 50 c/s. In this case, the signal power applied to the amplifier is of the order of 10-16watts.
Keywords :
Ferromagnetic materials; Hysteresis loops; Magnetic amplifiers; Displays; Ferrites; Impedance; Magnetic cores; Magnetic films; Magnetic flux; Magnetic hysteresis; Permeability; Saturation magnetization; Voltage;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1965.1062941
Filename :
1062941
Link To Document :
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