Design and Simulation of Conventional Rod Core Fluxgate Magnetometer and Analysis of Performance with Different Core Materials

Abstract

A comprehensive analysis on conventional rod core fluxgate magnetometer has been done by designing multiple designs with varying number of turns of excitation coil (from hence will be referred to as EXC) and pick-up coil (PC) as well as different core diameter have in Ansys Maxwell and their electromagnetic simulations have been carried out, the results were analysed and are reported in this paper. Also, the current sweep analysis, frequency sweep analysis has been done to study the behaviour of the ferromagnetic core for different magnitudes of excitation current as well as for studying the variation in output induced voltage for different frequencies of the input excitation current. Finally, the electromagnetic simulation of 100 turns rod core design with different ferromagnetic core materials such as iron, ferrite, Metglas 2605 HB1M and Mu-metal has been done to study the sensor performance in terms of sensitivity. The results of all these conducted studies have been included in this paper.