Rotational machine, method for the determination of a tilting of a rotor of a rotational machine, as well as a processing plant

A method for determining a tilting (Δ□) of a rotor (3) of a rotational machine (1) which rotational machine is adapted as a bearing-free engine including a stator (2) designed as a bearing and drive stator having a magnetic stator plane (21) wherein a magnetic rotor (3) having a magnetic rotor plane (31) is stored magnetically in contact free manner within the stator (2) in the operational state, wherein an axial height (H) of the rotor (3) is selected smaller than or equal to a half diameter (D) of the rotor (3) and the rotor (3) is stabilized passively by reluctance forces with respect to the magnetic stator plane (21) both against an axial displacement (ΔY) and also against a tilting (Δ□) from an equilibrium position (G) and a sensor unit (4) having a first sensor (41) and a second sensor (42) is provided at the stator (2) and for the determination of a deflection of the rotor (3) from the equilibrium position (G) a first sensor signal (410) from a first measurement zone (411) of the rotor (3) is evaluated by means of the first sensor (41) and a second sensor signal (420) from a second measurement zone (421) is evaluated by means of the second sensor (42), characterized in that for the determination of the tilting (Δ□) of the rotor (3) relative to the magnetic stator plane (21) a first control measurement zone (4111) which is part of the first measurement zone (411) is provided either below or above the magnetic rotor plane (31) at the rotor (3) such that at least 50% of the first sensor signal (410) generated from the first measurement zone (411) is generated by the first control measurement zone (4111) at the first sensor (41).

A processing plant in the nature of a wafer processing plant, a biological reactor plant, a pump, a mixer or any other processing plant comprising a rotational machine (1) adapted as a bearing-free engine including a stator (2) designed as a bearing and drive stator having a magnetic stator plane (21) and a magnetic rotor (3) having a magnetic rotor plane (21) and supported magnetically in contact free manner within the stator (2), wherein an axial height (H) of the rotor (3) is smaller than or equal to a half diameter (D) of the rotor (3) and the rotor (3) is stabilized passively by reluctance forces with respect to the magnetic stator plane (21) both against an axial displacement (ΔY) and also against a tilting (Δ□) from an equilibrium position (G) and a sensor unit (4) having a first sensor (41) and a second sensor (42) is provided at the stator (2) such that for the determination of a deflection of the rotor (3) from the equilibrium position (G) a first sensor signal (410) from a first measurement zone (411) of the rotor (3) can be evaluated by means of the first sensor (41) and a second sensor signal (420) from a second measurement zone (421) can be evaluated by means of the second sensor (42), wherein for the determination of a tilt (Δ□) of the rotor (3) relative to the magnetic stator plane (21) a first control measurement zone (4111) which is part of the first measurement zone (411) is provided either below or above the magnetic rotor plane (31) at the rotor (3) such that at least 50% of the first sensor signal (410) which can be generated from the first measurement zone (411) can be generated by the first control measurement zone (4111) at the first sensor (41).