A comparison between published analytical results with measured experimental results of the magnetic field produced by thermoelectric currents of subsurface semi-spherical pure tin inclusions embedded in a copper bar under the influence of an external heating and cooling into the specimen is presented. The experimental magnetic flux density measurements show a reasonable agreement as compared t...

The ability of an MEG system to resolve small or deep sources is solely determined by the achieved signal-to-noise ratio (SNR). Ideal MEG sensors should exhibit a large gain relative to the brain signals and should also effectively attenuate the environmental and brain noise. Designing the system for large signal strength without regard for noise attenuation, or designing for excellent noise at...

Abstract Accurate measurements of ambient planetary and interplanetary magnetic fields using spacecraft magnetometers typically require accounting for interfering generated by the flight system (FS). The most common method removing FS-generated time-variable is narrow-band low-pass filtering field data in frequency domain. However, if fluctuations contain frequencies overlapping those FS field,...

We present a current-monitoring system based on optical magnetometry, which is able to discriminate true current variations from environmental effects at room temperature. The consists of dedicated thermally stable magnetic-field-confining coil and an array four optically pumped magnetometers arranged in two-dimensional gradiometer configuration. These monitor magnetic field inside the coil, co...