Abstract: Gradiometer techniques are generally employed to detect near sources of weak magnetic field, especially in biomagnetic measurements, but they are also effective in the detection of the ...

Abstract: Two different concepts for gradiometer formation were tested applying high-temperature rf SQUIDs operated at 77 K in liquid nitrogen. All gradiometer systems are fully based on magnetometers ...

In this work we demonstrate a high sensitivity atomic gradiometer capable of operation in earth-field level environments. We apply a light-pulse sequence at four times the Larmor frequency to achieve ...

We report a single-beam synthetic gradiometer operated in the spin-exchange-relaxation free (SERF) regime, using the structure of two separate atomic vapor cells spaced 2 cm apart. To improve the ...

GOCE's highly sensitive gradiometer instrument has been switched on and is producing data. Forming the heart of GOCE, the gradiometer is specifically designed to measure Earth's gravity field with ...

A device that could detect minute, transient fluctuations in gravity caused by an earthquake could be a useful tool in earthquake early warning systems, researchers said at the Seismological Society ...

ABSTRACT: Gravimetric surveying is widely used to detect subsurface density contrasts and to identify buried cavities and geological structures. Conventional gravimeters provide high precision but ...