Name: Fabio Franco de Oliveira
Type: MSc dissertation
Publication date: 28/07/2017

Namesort descending Role
Rodolfo da Silva Villaca Advisor *

Examining board:

Namesort descending Role
Rodolfo da Silva Villaca Advisor *

Summary: The magnetic field around the planet Earth is generated by the effect of its core,
composed of metal in liquid form with temperatures in the order of
. This field,
which extends for thousands of kilometers above the atmosphere, is called Magnetosphere.
Around this field our planet is exposed to the solar radiation known as ”solar winds”.
These, in turn, according to their degree of intensity, can induce phenomena known as
”solar storms”, which can induce oscillations of voltage in electric power transmission lines
and interference in satellite data communication.
For the study and monitoring of the physical quantities related to these phenomena,
besides the study of different types of rock formations and magnetic minerals, geologists
and geophysicists from schools and universities around the world use equipment called
In this context, this dissertation presents the EstGeoMag, a hardware-software solution
of low-cost, based on concepts present in the Internet of Things, and which the main
objective is to assist obtain geomagnetic quantities with high precision and accuracy.
The proposed architecture is implemented using a Single Board Computer, Analog-
digital converters, Fluxgate sensors, as well as software in C, Python, and Javascript.
Several experiments and evaluations over the course of several months were performed
as proof of concept, in order to demonstrate its feasibility, precision and accuracy when
compared to commercial equipment.

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