The usage of amorphous ferromagnetic materials as fluxgate magnetic field sensors

Fluxgate magnetic field sensors have, both in terms of cost and sensivity, a special place among the magnetic sensors for many applications. For this reason it is known that many research have been done about this kind of sensors for a long time. In this thesis the coil-less fluxgate propeties of amorphous ferromagnetic Co71Fe4Mo1Si14B9, Co67Fe4Mo1,5Si16,5B11 ribbons and amorphous ferromagnetic (Co0.94Fe0.06)72.5Si12.5B15 wire were investigated. Coil-less fluxgate sensor is a new type of orthogonal fluxgate sensor. There has been no reported coil-less fluxgate research about amorphous ferromagnetic materials in the form of ribbon up to date. Consequently, the working principle of the coil-less fluxgate sensor in amorphous ferromagnetic wires and ribbons, in reference to the different models which are in the literature, was investigated and discussed.