DYNAMIC ANHYSTERETIC DEMAGNETIZATION APPARATUS HAVING POLE FACES PERPENDICULAR TO THE ROTATIONAL AXIS

A magnetic tape with recorded data thereon is demagnetized and/or erased by being passed through an erasure zone having rotating magnetic fields. The magnetic fields have an intensity sufficient to saturate the recording medium and remain within the negative region of the hysteresis curve while rema...

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Bibliographische Detailangaben
Hauptverfasser:	HUFFMAN R,US, BAKER S,US, GROSSLIGHT D,US, PACE A,US
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MAGNETS PHYSICS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS
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Beschreibung
Zusammenfassung:	A magnetic tape with recorded data thereon is demagnetized and/or erased by being passed through an erasure zone having rotating magnetic fields. The magnetic fields have an intensity sufficient to saturate the recording medium and remain within the negative region of the hysteresis curve while remanent magnetism is removed.