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
Link To Document :
