Gradiometer of magnetic, mechanical and miniaturizable field and its operation. (Machine-translation by Google Translate, not legally binding)

摘要

Magnetic field gradiometer, mechanical and miniaturizable, and its operation. Miniaturizable device for the detection and measurement of magnetic field gradients. Its operation is based on the force exerted by the magnetic field gradient to be measured on a magnetized magnetic material. The magnetized magnetic material forms part of a mechanical structure. Soft or hard magnetic material can be used. With soft magnetic material the structure can be flexed statically or mechanically resonate, providing in both cases a measure of the gradient. With hard material the device works only in a static way. It can be manufactured with the standard technology in the realization of mems (miniaturized mechanical devices). There are other mechanical gradiometers that allow localized measurements, but this is constituted by magnetic material, which allows to have a great magnetic moment, which provides to increase the sensitivity and makes unnecessary the refrigeration at cryogenic temperatures. (Machine-translation by Google Translate, not legally binding)