نتایج جستجو برای: gradiometer
تعداد نتایج: 262 فیلتر نتایج به سال:
Quantum gravity gradiometers based on atom interferometry hold the promise for greater sensitivity and suitability for Earth science applications. Such instruments can potentially provide not only high resolution mapping of mass distribution both above and below the surface of the planet, but also temporal monitoring of its dynamical processes. These capabilities will significantly advance our ...
Nearly all magnetic gradiometers in use utilise two magnetometers, separated along a base line, differencing a measured total magnetic field. Taking the difference in the magnetic field strength at those two locations gives an estimate of the magnetic gradient. Difficulties in cancelling out the huge magnetic field of the Earth (30000 – 50000 nT compared to gradients signals measured in nT/m) a...
Magnetic flux leakage (MFL) testing is a widely used technology for detecting structural defects in industry, where new magnetic sensors can provide an enhanced detectability. We have fabricated and developed vortex tunnel junctions (MTJs) into MFL probe, by designing well-balanced gradiometer with base length of 4 cm. Such has exhibited field detectability 1.6nT/Hz at 1 kHz, superior common-mo...
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