Magnetoresistiver Sensor zur Abtastung eines magnetischen Multipolrades

摘要

The invention relates to a magneto-resistive sensor for scanning a magnetic multipole wheel, said sensor scanning a large number of uniformly arranged magnetic pole pairs. The sensor has four magneto-resistive resistances, which are electrically connected as a Wheatstone-bridge comprising two half-bridges and emit a sinusoidal or cosinusoidal signal. To suppress the third and/or the fifth harmonic wave of the scanning signal, the distance between the two half-bridges is selected in such a way that it is not equal to half the wavelength (&lambda).