Title :
A magnetoresistive head with magnetic feedback
Author :
de Niet, E. ; Vreeken, R.
Author_Institution :
Philips Research Laboratories, Eindhoven, The Netherlands
fDate :
11/1/1979 12:00:00 AM
Abstract :
A hifi read-out head is made, using the magneto-resistive effect. The Barkhausen noise and the distortion in the element are drastically reduced through magnetic feedback. Thermal noise is avoided by positioning the element in the rear gap of the head. Good wear resistance and resolution are ensured by using ferrite cores. The effect of feedback, the practical implementation and the performance of the head are discussed.
Keywords :
Magnetic recording/reading heads; Magnetoresistive transducers; Conductors; Magnetic fields; Magnetic heads; Magnetic noise; Magnetoresistance; Negative feedback; Noise reduction; Nonlinear distortion; Output feedback; Signal to noise ratio;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1979.1060497
