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Evaluación de las características estadísticas del modelo del campo electromagnético natural en Cuba
(1979)
Durante las estaciones de primavera y verano en Cuba, se introdujo un nuevo método para el registro sistemático del campo electromagnético natural en las bandas de muy bajas (1,5 - 30 kHz) y ultrabajas (0,08 - 1 ,5 kHz) ...
Análise, comparação e desenvolvimento de filtros analógicos tipo notch 60 hz para aplicação em eletrocardiografia
(Universidade Tecnológica Federal do ParanáCampo MouraoBrasilDepartamento Acadêmico de EletrônicaEngenharia EletrônicaUTFPR, 2021-11-24)
Medical equipment, as in most electronic equipment, is liable to suffer electromagnetic interference from the 60 hertz of the power grid and, consequently, have its performance affected. To solve this problem, notch filters ...
Biopotential acquisition for brain-wheelchair interfaces
(Elsevier, 2018)
Obtaining a complete biopotential acquisition system suitable for the real-world use of an intelligent wheelchair is still an open problem without a satisfactory solution. It is perhaps the single block that may be hindering ...
Microcontrolled pyro-electric instrument for measuring X-ray intensity in mammography
(2005-12-01)
A novel instrument for measurement of X-ray intensity from mammography consists of a sensitive pyro-electric detector, a high-sensitivity, low-noise current-to-voltage converter, a microcontroller and a digital display. ...
Microcontrolled pyro-electric instrument for measuring X-ray intensity in mammography
(2005-12-01)
A novel instrument for measurement of X-ray intensity from mammography consists of a sensitive pyro-electric detector, a high-sensitivity, low-noise current-to-voltage converter, a microcontroller and a digital display. ...
High gain driven right leg circuit for dry electrode systems
(Elsevier, 2017-01)
This paper presents an improved driven right leg (DRL) circuit compensation together with a practical implementation. The proposed design allows to increase common mode voltage attenuation compared with the widely used ...
Avaliação das condições de operação de um contator eletromagnético utilizando sensores a fibra óptica
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2020-02-21)
This work presents the analysis and results obtained from the fiber Bragg gratting (FBG) sensors instaled in the fixed core of an electromagnetic contactor, for temperature and strain measurements. These results can be ...
Análise da deformação dinâmica de um contator eletromecânico utilizando redes de Bragg em fibra óptica
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de ElétricaEngenharia ElétricaUTFPR, 2018-11-08)
The electromechanical contactors are widely used in industrial environment to connect and disconnect of power load circuits. Due to its variety of applications it is important to guarantee its operation, even in adverse ...
Autler-Townes doublet and electromagnetically induced transparency resonance probed by an ultrashort pulse train
(Iop Publishing LtdBristolInglaterra, 2010)