Co-RICH AMORPHOUS MATERIAL IN FLUXGATE AND GMI REGIME

Michal Malátek – Pavel Ripka

   A comparison between fluxgate and GMI sensor has been made using universal sensor structure for both regimes of operation. Temperature stability and perming effect were investigated. The results show that competitiveness of GMI sensors over the fluxgates is lower mainly due to huge temperature sensitivity of the offset. Nevertheless, the easy miniaturisation of GMI sensors allows them to be used in vast of low cost applications, which do not demand high accuracy.

Keywords: orthogonal fluxgate, giant magnetoimpedance, temperature stability, perming, amorphous ribbon

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