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Sampling and analog recording with square-loop magnetic devices

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4 Author(s)
R. James ; UNIVAC, Sperry Rand, Saint Paul, MN, USA ; F. Hewitt ; L. Harklau ; C. Lundberg

Square-loop magnetic devices have been used traditionally in digital circuitry. Methods by which a combination of the square-loop and time-limited switching properties of magnetic devices can be used to sample and record a transient signal are described. These circuit functions have been previously performed by rather complicated electronic means. Magnetic sampling and recording has several advantages over previously used methods: 1) circuitry is simple; 2) magnetic elements are less sensitive to some types of environmental conditions; 3) the recording and sampling is performed in a single device; 4) sampling duration can be made short enough to obtain high-frequency response; and 5) an extremely wide variety of recording problems can be solved with these devices.

Published in:

IEEE Transactions on Magnetics  (Volume:1 ,  Issue: 4 )