Magnetoresistive head

Details Magnetoresistive head Magnetoresistive head

G - Physics

11

B

352/29.4

G11B 5/58 (2006.01) G01R 33/025 (2006.01) G11B 5/39 (2006.01)

Patent

CA 1076252

PHN 7998C 31.3.76 ABSTRACT: A magnetic reading device having two electri- cally series arranged magnetiresistive elements, in particular for interference compensation and position- ing control. Since a pattern of equipotential strip is provided on each element to adjust the quiescent angle .alpha. between the direction of magnetisation and the direc- tion of current passage of one element between 30° and 60° and betwebn 210° and 240°, respectively, and that of the other element at 360°, - .alpha. and l80° - .alpha. , respectively, the device has for various application an automatic com- pensation of the signals across the elements so that the use of difference amplifiers is superfluous. In addition due to the said adjustment, the reproduction characteris- tic has a linear variation.

249918

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