| 摘要 |
A magnetic reading device having two electrically series-arranged magnetoresistive elements, in particular for interference compensation and positioning control. A pattern of equipotential strips is provided on each element to adjust the quiescent angle alpha between the direction of magnetisation and the direction of current passage of one element between 30 DEG and 60 DEG and between 210 DEG and 240 DEG , respectively, and that of the other element at 360 DEG - alpha and 180 DEG - alpha , respectively, the device has for various applications an automatic compensation of the signals across the elements so that the use of difference amplifiers is superfluous. In addition, due to this adjustment, the reproduction characteristics has a linear variation.
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