نتایج جستجو برای: fluxgate gradiometer survey
تعداد نتایج: 372369 فیلتر نتایج به سال:
Fetal magnetocardiograph (fMCG) provides a new non-invasive technique for monitoring fetal cardiac wellbeing during the last 10 weeks ofpregnancy. Using a single channel second order SQUID gradiometer located over the maternal abdomen we have successfully recorded QRS complexes in 9 of 11 subjects from 30-40 weeks gestation and full PQRSTcomplexes in all 4 subjects in whom off-line averaging te...
Abstract. Fluxgate magnetometers are widely used for in situ magnetic field measurements the context of geophysical and solar system studies. Like most experimental studies, using fluxgate constrained by associated uncertainties. To evaluate performance magnetometers, measurement uncertainties calibrated data quantitatively studied a spinning spacecraft. The derived analytically perturbing cali...
A complete vector-2D micro-integrated sensors system for magnetic field measurement is proposed. The system consists of a micro-integrated Fluxgate magnetometer with front-end electronic circuitry based on second-harmonic detection. The magnetic core of the sensor is the VITROVAC 6025X deposited over the micro-integrated coils with the RF magnetron sputtering process deposition.
This article deals with non-destructive evaluation of austenitic stainless steels, which are used as the biomaterials in medical practice. Intrinsic magnetic field is investigated using the fluxgate sensor, after the applied plastic deformation. The three austenitic steel types are studied under the same conditions, while several values of the deformation are applied, respectively. The obtained...
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