DESIGN AND DEVELOPMENT OF AN OPTIMIZED FLUXGATE MAGNETOMETER FOR IMPROVED EARTH'S MAGNETIC FIELD STUDIES

📄 Project Abstract

This research work was centered on optimizing the Fluxgate Magnetometer Sensor (FMS)at reduced noise level and enhanced sensitivity. The FMS was developed using Manganese Zinc (MnZn) ferrite alloy different from the usual permalloy and amorphous alloy materials. The developed FMS using MnZn ferrite achieved reduced sensor dimensions with high sensitivity and reduced noise level, thus meeting the necessary requirements for the earths magnetic field studies. However, the sensor was realized using MnZn ferrite ring core material, excitation and pick-up coils, and the interface electronic circuits.The performance of this designed and developed FMS was optimized using the modified Firefly Optimization Algorithm (FOA). The characteristics of the developed fluxgate sensors were modeled using the modified FOA and the matching between the excitation and detection circuits was then considered. Analysis was then carried out to determine the values of relevant parameters using modified FOA written...