Resumen
Magnetic field gradient measurement system. Device for the measurement of magnetic field gradients, formed by three mechanical gradiometers, g1, g2 and g3, shaped like a tongue, arranged coplanarly and radially around a same point. The micro-electro-mechanical gradiometers (mems) in the form of a tongue can produce erroneous measurements of the gradient due to various circumstances: bending or twisting of the tongue of thermal or magnetostrictive origin; orientation of the tongue under the action of an intense magnetic field. These problems are usually avoided by using other structures, bridges instead of reeds, which leads to a reduction in sensitivity. The spatial distribution of gradiometers in the system allows a correct measurement of the magnetic field gradient to be obtained, even when the measurements provided by each gradiometer, independently, are erroneous. (Machine-translation by Google Translate, not legally binding)