Browsing 12. Congresso Internacional de Metrologia Elétrica (SEMETRO) by Author "Barbosa, Carlos Roberto Hall"

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Algoritmos genéticos aplicados à otimização multiparamétrica da resposta de gradiômetros GMI

Barbosa, Carlos Roberto Hall; Silva, Eduardo Costa da; Gusmão, Luiz Antonio Pereira de (2017)

O uso de configurações gradiométricas possibilita a otimização da relação sinal-ruído em medições magnéticas. Sensores GMI são utilizados em medições de campos magnéticos ultra-fracos, tipicamente abaixo dos níveis de ...
GMR sensors and neural networks applied to the contactless measurement of direct electrical currents

Barbosa, Carlos Roberto Hall; Neves, Camila Schuina; Magalhães, Daniel (2017)

Clamp ammeters based on coils are restricted to the measurement of alternating currents, through the associated magnetic field. There are also commercial versions able of measuring direct currents, based on Hall effect ...
High sensitivity GMI gradiometer for measurement of low intensity magnetic fields

Barbosa, Carlos Roberto Hall; Silva, Eduardo Costa da (2017)

This paper presents the development of a high sensitivity giant magnetoimpedance (GMI) gradiometer, aimed at measuring ultra-weak magnetic fields. In order to increase the signal-to-noise ratio, the use of gradiometric ...

Now showing items 1-3 of 3

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