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Previous issue date: 2015-07-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Neste trabalho foi desenvolvido um magnet?metro, em que toda a etapa
de convers?o de sinais e aquisi??o de dados foi realizada por software, constitu?da
unicamente de um sensor de fluxo saturado, comercial. O magnet?metro possui
alta sensibilidade para medir campos magn?ticos de baixa intensidade, est?tico ou
de pequenas varia??es. Esse tipo de sensor funciona a partir da satura??o de um
material ferromagn?tico utilizado como n?cleo. Foram elaborados dois
programas. O primeiro em linguagem Labview, esse faz a comunica??o entre o
sensor e o usu?rio atrav?s de um computador, o aplicativo produzido ?
respons?vel pela obten??o e armazenamento dos dados referentes ao sinal de
sa?da do sensor. O segundo programa feito em linguagem Java ? incumbido pela
convers?o dos dados para assim estud?-los, al?m de armazen?-los em v?rios
formatos e construir gr?ficos. Os resultados obtidos s?o de grande import?ncia
para estudos do comportamento do campo geomagn?tico, pois as varia??es de
fluxo magn?tico podem induzir correntes el?tricas na superf?cie e assim afetar a
distribui??o de energia el?trica e tamb?m os sistemas de telecomunica??es.
Mostrou-se que ? poss?vel, com este magnet?metro, estudar as varia??es de
campos em tempestades magn?ticas e em per?odos considerados calmos. / In this work has been developed a magnetometer, which every step of
conversion of signs and data acquisition has been realized by software, constituted
solely of a sensor flux saturated, commercial. The magnetometer has got high
sensitivity for measure magnetics fields of low intensity, static or with a little
variations. This kind of sensor behave with base in the saturation of a ferromagnetic
material has been used how core. For improve the instrument, have been elaborated
two programs. The first in Labview language, it does the communication between
sensor and user through computer, the app produced is responsible for get and save
the data relative to the sensor's output signal. The second program made in Java
language is delegated for the conversion of data to study them, also save in various
formats and plot graphics. The results are of great importance to study of behavior of
the geomagnetic field, because the variations of magnetic flux will induce electrical
currents in surface of earth, so affect the distribution of electric energy and the
telecommunication Systems. Showed to be possible, with this magnetometer, to
study the variations of fields in magnetic storms and in period considered calm.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/20344 |
| Date | 30 July 2015 |
| Creators | Silva J?nior, Jos? Pedro da |
| Contributors | 24150720444, http://lattes.cnpq.br/2455132422249405, Mendes, David, 43298990272, http://lattes.cnpq.br/4411895644401494, Santos, Nednaldo Dantas dos, 02134003405, http://lattes.cnpq.br/3538940359754089, Borba, Gilvan Luiz, Ara?jo, Jos? Humberto de |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM CI?NCIAS CLIM?TICAS, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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