DocumentCode
1035873
Title
A magnetic core analog memory
Author
Friedlaender, Fritz J. ; McMillen, John D.
Author_Institution
Purdue University, Lafayette, Ind
Volume
3
Issue
3
fYear
1967
fDate
9/1/1967 12:00:00 AM
Firstpage
463
Lastpage
466
Abstract
The stored flux level in a 50 percent Ni-Fe tape core is read nondestructively to provide an analog memory. The stored flux level is set by means of a low-field ( 
) pulse. This flux level can be read out nondestructively by applying a short high-field pulse ( 
) which produces a peak rate of change of flux proportional to the stored flux level relative to saturation remanence. A subcoercive bias field applied to the core restores it to the original low-field flux state. Experimental data and the model leading to the conception of the memory are presented; and the circuit details of a typical core analog memory are described.
) pulse. This flux level can be read out nondestructively by applying a short high-field pulse ( ) which produces a peak rate of change of flux proportional to the stored flux level relative to saturation remanence. A subcoercive bias field applied to the core restores it to the original low-field flux state. Experimental data and the model leading to the conception of the memory are presented; and the circuit details of a typical core analog memory are described.Keywords
Analog memories; Iron-nickel alloys; Magnetic core memories; Nickel-iron alloys; Analog memory; Bismuth; Influenza; Magnetic analysis; Magnetic cores; Remanence; Surface waves; Toroidal magnetic fields; Voltage;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1967.1066106
Filename
1066106
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