Portable meter for measuring a force generated by a magnetic apparatus

A portable meter (1) for detecting a force generated by a magnetic apparatus (2), the meter (1) comprising:

• a mobile probe (3) configured to be removably coupled to the magnetic apparatus (2) the probe (3) including a plurality of active ferromagnetic elements (4), a plurality of passive ferromagnetic elements (4A), and an alignment system (5,6) configured to align the plurality of active ferromagnetic element (4) to at least one magnetic pole (N, S) of the magnetic apparatus (2);
• wherein the plurality of active ferromagnetic elements (4) have a configuration corresponding to that of a pole (N, S) of the magnetic apparatus (2) and are each surrounded by at least one turn (B) in electrically conductive material;
• wherein the plurality active of ferromagnetic element (4) and the plurality of passive ferromagnetic elements (4A) are arranged in a checkerboard pattern;
• wherein a magnetic insulator (I) is positioned between each of the plurality of active ferromagnetic element (4) and each of the plurality of passive ferromagnetic element (4A);
• and
• a detection unit (7) interfaced with the at least one turns (B) so as to detect a magnetic flux that flows through the at least one turns (B) at least during a transient of activation/deactivation of the magnetic apparatus (2).