Electromagnetic positioning
View Patent ↗A positioner has a first surface with a plurality of controlled electromagnets and a second surface having a circular cross-section movably positioned relative to the first surface. A plurality of magnetic positioners are disposed around the second surface. Control logic energizes a sequence of the controlled electromagnets to create magnetic interaction with the plurality of magnetic positioner and thereby move the second surface relative to the first surface. A rotor may be positioned to rotate relative to the second surface. Electromagnetic pickups in proximity with the rotor receive a time-varying electromagnetic field from rotor magnets as the rotor rotates, thereby generating electrical energy.
1. A magnetic system comprising:
a body having at least one cavity wall defining a cavity;
a plurality of controlled electromagnets spaced about the at least one cavity wall;
a housing having a curved outer surface defining an electromagnetically transparent opening, the housing curved surface rotatively positioned within the cavity;
at least one magnetic positioner fixed to move with the curved outer surface;
a rotor rotatively fixed within the housing, the rotor positioned to rotate by the housing opening;
at least one rotor magnet fixed on the rotor; and
at least one electromagnetic pickup disposed within the housing in proximity with the rotor, each pickup receiving a time-varying electromagnetic field from at least one rotor magnet as the rotor rotates.
2. A magnetic system as in claim 1 further comprising control logic in communication with the plurality of controlled electromagnets, the control logic energizing at least one of the controlled electromagnets to create magnetic interaction with at least one magnetic positioner and thereby move the housing relative to the cavity.
3. A magnetic system as in claim 1 further comprising control logic in communication with the plurality of controlled electromagnets, the control logic energizing at least one of the controlled electromagnets to create magnetic interaction with the at least one rotor magnet to spin the rotor within the housing.
4. A magnetic system as in claim 1 further comprising at least one electronic system disposed within the housing, the electronic system powered by energy from each pickup receiving a time-varying electromagnetic field.
5. A magnetic system as in claim 1 wherein the plurality of controlled electromagnets spaced about the at least one cavity wall comprises a first set of electromagnets for positioning the housing and a second set of electromagnets for rotating the rotor.
6. A magnetic system as in claim 1 wherein the at least one rotor magnet fixed on the rotor is a first set of at least one magnet for spinning the rotor and a second set of at least one magnet for generating each time-varying electromagnetic field received by each pickup.