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This paper describes the process of first recording in Romania of a biomagnetic signal generated by the cardiac activity of an adult heart. Simultaneously, there was recorded the ECG signal for the same subject. In the recorded magnetocardiogram there are found perturbance components, which are due to external stray fields (50 Hz). The processing of the obtained signal was carried out by software...
This paper presents a study of the magnetic fields produced by electrical conductors carrying electric current in two situations: two power cables in a parallel configuration and in a twisted configuration. Analytical relationships are shown on the magnetic field of the two configurations relative to the field produced by a single conductor. Analytical results are compared with the results of numerical...
In the context of the implementation of Directive 2013/35/EU, this paper addresses some specific aspects of occupational and non-occupational exposure in distinct situations. There is covered the shipboard personnel exposure to magnetic fields produced by the onboard power plant and ship propulsion system and to radiofrequency fields produced by communications and radar stations. In addition, it is...
The work presents the errors induced by some geometrical imperfections underlying in the experimental realization of a 1st and 2nd order SQUID gradiometer with electronic subtraction. It will be discus the effect of the non identity coils of the magnetometer channels and the signal noise ratio for 1st and 2nd order magnetic field gradients for two different magnetic sources, one of disturbance and...
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