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Crossfield effect often seriously limits the accuracy of magnetic sensors. However, this effect is only rarely discussed by sensor manufacturers and users. .In this paper, we present measurements on ring-core, racetrack and Vacquier type fluxgates and on one type of AMR sensor. In the case of fluxgates, crossfield error in the Earth's field can be suppressed by proper design below 15 nT p-p for ringcore...
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