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conference paper not in proceedings
A new compact 2D planar fluxgate sensor with amorphous metal core
1998
A new compact 2D planar fluxgate sensor using a ferromagnetic amorphous metal core is described. The fluxgate sensor consists of two orthogonal planar coils and an amorphous magnetic ring core mounted on a PCB substrate. Each planar coil is used alternatively as excitation or as pick-up coil. An electronic interface drives alternatively the two coils and performs a feedback on each sensing coil in order to compensate for the measured magnetic field. The sensing element has a magnetic detectivity of 40nT for an excitation frequency of 10kHz and a 160mApeak driving current.
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PK98_1.pdf
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