DocumentCode :
1375112
Title :
Nondestructive sensing of magnetic cores
Author :
Buck, Dudley A. ; Frank, Werner I.
Author_Institution :
Massachusetts Institute of Technology, Cambridge, Mass.
Volume :
72
Issue :
6
fYear :
1954
Firstpage :
822
Lastpage :
830
Abstract :
A nondestructive method for sensing the information state of magnetic-memory cores is under development. This new method involves the use of a quadrature magnetic field which, when pulsed, produces an output voltage. The polarity of the output voltage contains the information: a positive output pulse represents a one, and a negative pulse a zero. Reading in this manner can be repeated indefinitely without destroying the information held by the core. The method has proven to be exceedingly fast, giving output pulses of 0.2 microsecond in duration, and because of the rapid flux change when sensing, the output voltage has been observed in excess of 1 volt per turn.
Keywords :
Magnetic cores; Magnetic flux; Magnetic hysteresis; Magnetization; Sensors; Vectors; Windings;
fLanguage :
English
Journal_Title :
American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
Publisher :
ieee
ISSN :
0097-2452
Type :
jour
DOI :
10.1109/TCE.1954.6372090
Filename :
6372090
Link To Document :
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