Command procedure for an active magnetic bearing, the magnetic bearing comprising: a series of electromagnetic actuators (18A, 18B, 20A, 20B, 22A, 22B, 24A, 24B) forming a stator, a ferromagnetic body forming a rotor, kept free of contact between the electromagnetic actuators (18A, 18B, 20A, 20B, 22A, 22B, 24A, 24B) and being suitable for being set in rotation around an axis of rotation (Z-Z'), the rotor being suitable for being subjected in particular to precession movements under the action of radial momentum induced by the radial forces exercised and added perpendicular to the axis of rotation (Z-Z'), and sensors (16A, 16B, 16C, 16D) suitable for detecting radial displacement of the rotor and issuing position signals (X 1, X 2, Y 1, Y 2) representative of the radial position of the rotor in relation to the actuators, each actuator (18A, 18B, 20A, 20B, 22A, 22B, 24A, 24B) receiving an input signal as its command and being suitable for exercising radial force on the rotor, the command procedure comprising the following stages: calculation (78, 80, 82, 84, 86), on the basis of the position signals (X 1, X 2, Y 1, Y 2), of at least one actuator command signal (I X1, I X2, I Y1, I Y2), the calculation of the command signal (I X1, I X2, I Y1, I Y2) consisting of the application of at least one transfer function (C Φ1, C Φ2) to the position signals (X 1, X 2, Y 1, Y 2), the or each transfer function comprising a series of correction coefficients, and application of the or each calculated command signal (I X1, I X2, I Y1, I Y2) to an input point of an actuator for controlling the radial position of the rotor; wherein at least one correction coefficient of the or each transfer function is a function of the polar moment of inertia defined as the moment of inertia of the rotor around the axis of rotation (Z-Z') and a function of the transverse moment of inertia defined as the moment of inertia of the rotor around an axis perpendicular to the axis of rotation (Z-Z') and depends continuously on the rotation speed of the rotor; and wherein the or each command signal (I X1, I X2, I Y1, I Y2) is suitable for commanding continuous offset of the precession movements of the rotor. a series of electromagnetic actuators (18A, 18B, 20A, 20B, 22A, 22B, 24A, 24B) forming a stator, a ferromagnetic body forming a rotor, kept free of contact between the electromagnetic actuators (18A, 18B, 20A, 20B, 22A, 22B, 24A, 24B) and being suitable for being set in rotation around an axis of rotation (Z-Z'), the rotor being suitable for being subjected in particular to precession movements under the action of radial momentum induced by the radial forces exercised and added perpendicular to the axis of rotation (Z-Z'), and sensors (16A, 16B, 16C, 16D) suitable for detecting radial displacement of the rotor and issuing position signals (X 1, X 2, Y 1, Y 2) representative of the radial position of the rotor in relation to the actuators, each actuator (18A, 18B, 20A, 20B, 22A, 22B, 24A, 24B) receiving an input signal as its command and being suitable for exercising radial force on the rotor, the command procedure comprising the following stages: calculation (78, 80, 82, 84, 86), on the basis of the position signals (X 1, X 2, Y 1, Y 2), of at least one actuator command signal (I X1, I X2, I Y1, I Y2), the calculation of the command signal (I X1, I X2, I Y1, I Y2) consisting of the application of at least one transfer function (C Φ1, C Φ2) to the position signals (X 1, X 2, Y 1, Y 2), the or each transfer function comprising a series of correction coefficients, and application of the or each calculated command signal (I X1, I X2, I Y1, I Y2) to an input point of an actuator for controlling the radial position of the rotor; wherein at least one correction coefficient of the or each transfer function is a function of the polar moment of inertia defined as the moment of inertia of the rotor around the axis of rotation (Z-Z') and a function of the transverse moment of inertia defined as the moment of inertia of the rotor around an axis perpendicular to the axis of rotation (Z-Z') and depends continuously on the rotation speed of the rotor; and wherein the or each command signal (I X1, I X2, I Y1, I Y2) is suitable for commanding continuous offset of the precession movements of the rotor. calculation (78, 80, 82, 84, 86), on the basis of the position signals (X 1, X 2, Y 1, Y 2), of at least one actuator command signal (I X1, I X2, I Y1, I Y2), the calculation of the command signal (I X1, I X2, I Y1, I Y2) consisting of the application of at least one transfer function (C Φ1, C Φ2) to the position signals (X 1, X 2, Y 1, Y 2), the or each transfer function comprising a series of correction coefficients, and application of the or each calculated command signal (I X1, I X2, I Y1, I Y2) to an input point of an actuator for controlling the radial position of the rotor; wherein at least one correction coefficient of the or each transfer function is a function of the polar moment of inertia defined as the moment of inertia of the rotor around the axis of rotation (Z-Z') and a function of the transverse moment of inertia defined as the moment of inertia of the rotor around an axis perpendicular to the axis of rotation (Z-Z') and depends continuously on the rotation speed of the rotor; and wherein the or each command signal (I X1, I X2, I Y1, I Y2) is suitable for commanding continuous offset of the precession movements of the rotor.