NOVELTY - The measurement method involves providing user electric circuit (U) through which electrical current (I1) to be measured is flowing. Alternative electric current (I2) is electrically fed to first coils (4) wound around inductor (3) to generate alternate induced magnetic field. Second coils (5), belonging to user electrical circuit, are wound to inductor so that current to be measured generate additional magnetic field in inductor. The shape of wave of alternative electric current is then modified. The continuous component of the alternative electric current is then measured.    USE - Electrical current measurement method for use in control circuits of e.g. batteries, solar panels, hydrogen cells. Can be used for measuring direct current (DC) or pulsed current.    ADVANTAGE - Measures an electric current that is accurate and, at the same time, has a very limited power consumption compared to the equivalent known electric current measuring devices. Provides a device for measuring an electric current that can be used in a passive loop of the 4 to 20 milliampere-type. Ensures that the electric current measuring device has electronic circuits that are easy to implement and has low cost. Ensures that the electric current measuring device is compact, so as to make it easy to use in any application.    DETAILED DESCRIPTION - The alternate induced magnetic field cyclically saturates the inductor from saturation state to the saturation state with the opposite sense. The alternative electric current has a null continuous component when the magnetic field induced in the inductor is generated exclusively by the alternative electric current. The additional magnetic field varies the cycle of the inductor passing from saturation state to saturation state with opposite sense. The shape of the wave of the alternative electric current is modified so as to keep unchanged the saturation values of the overall magnetizing field of the inductor. The alternative electric current with modified wave shape introduces a not null continuous component proportional to the current to be measured. An INDEPENDENT CLAIM is included for the electrical current measuring device.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of the electric current measuring device.    Electric commutator circuit (2)    Inductor (3)    First coils (4)    Second coils (5)    Electrical current (I1)    Alternative electric current (I2)    User electric circuit (U)