An improved magnetic-levitation-based low-gravity simulator (MLS) is provided. The MLS comprises one or more gradient-field Maxwell coils that are provided within a superconducting magnet. When a current is provided to the one or more Maxwell coils and the superconducting magnet, a simulated low-gravity region is produced within the MLS. An object may be provided within this low-gravity region and may levitate within the region. The MLS may be used to test the impacts of low-gravity environments (for example, extraterrestrial environments) on different types of objects. Compared to an existing solenoid MLS, the improved MLS described herein includes a much larger volume low-gravity region at a lower energy expenditure.

An improved magnetic-levitation-based low-gravity simulator (MLS) is provided. The MLS comprises one or more gradient-field Maxwell coils that are provided within a superconducting magnet. When a current is provided to the one or more Maxwell coils and the superconducting magnet, a simulated low-gravity region is produced within the MLS. An object may be provided within this low-gravity region and may levitate within the region. The MLS may be used to test the impacts of low-gravity environments (for example, extraterrestrial environments) on different types of objects. Compared to an existing solenoid MLS, the improved MLS described herein includes a much larger volume low-gravity region at a lower energy expenditure.

The present invention is in the field of a National Individual Floating Transportation Infrastructure (NIfTI) wherein floating vehicles can travel by magnetic levitation and propagation. The vehicles can travel at a controllable height above the existing, albeit modified, road infrastructure and at relatively high speeds.

The present invention is in the field of a National Individual Floating Transportation Infrastructure (NIfTI) wherein floating vehicles can travel by magnetic levitation and propagation. The vehicles can travel at a controllable height above the existing, albeit modified, road infrastructure and at relatively high speeds.

A power consumption control device includes: a voltage detection circuit configured to detect whether an input power supply of a magnetic levitation system to be controlled is turned off; and a comparison unit configured to detect an operating parameter of a motor of the magnetic levitation system during an operation of the motor as a generator, and compare the operating parameter with a set parameter to obtain a comparison result; a motor controller of the magnetic levitation system controls the motor of the magnetic levitation system to operate as the generator in a case that the input power supply is turned off, a bearing controller of the magnetic levitation system adjusts a magnitude of a bearing bias current of the magnetic levitation system according to the comparison result, to control a power consumption of a magnetic levitation bearing of the magnetic levitation system within a set range.

A power consumption control device includes: a voltage detection circuit configured to detect whether an input power supply of a magnetic levitation system to be controlled is turned off; and a comparison unit configured to detect an operating parameter of a motor of the magnetic levitation system during an operation of the motor as a generator, and compare the operating parameter with a set parameter to obtain a comparison result; a motor controller of the magnetic levitation system controls the motor of the magnetic levitation system to operate as the generator in a case that the input power supply is turned off, a bearing controller of the magnetic levitation system adjusts a magnitude of a bearing bias current of the magnetic levitation system according to the comparison result, to control a power consumption of a magnetic levitation bearing of the magnetic levitation system within a set range.

Techniques for tuning magnetic potential using a variable gap in a parallel dipole line (PDL) trap are provided. In one aspect, a PDL trap is provided. The PDL trap includes: a pair of dipole line magnets separated from one another by a variable gap g; and a diamagnetic object levitating above the dipole line magnets. The dipole line magnets can be separated from one another by at least one spacer, or a variable gap fixture can be used in which the dipole line magnets are affixed to separate mounts for varying the gap g between the dipole line magnets. A bigger trap or track can be built with multiple segments of PDL trap. A meth d of operating a PDL trap is also provided.

Techniques for manipulating objects and for determining the position of the objects in parallel dipole line (PDL) trap systems are provided. In one aspect, a PDL trap is provided. The PDL trap includes: a pair of dipole line magnets connected to a potential, wherein the pair of dipole line magnets includes magnets having magnetizations perpendicular to long axes of the magnets; a diamagnetic rod levitating above the pair of dipole line magnets; and at least one electrode above the pair of dipole line magnets, adjacent to the diamagnetic rod. The system produces a hybrid one-dimensional electromagnetic potential which is tunable by voltage. Techniques for operating the PDL trap to manipulate the diamagnetic rod and to detect a position of the diamagnetic rod in the PDL trap are also provided.

Systems and methods of threading a metal substrate on a rolling mill include receiving a coil of the metal substrate. The method also includes uncoiling the metal substrate from the coil while the coil and guiding the metal substrate to a work stand of the rolling mill with a threading system.

An electrical power generator includes a first part configured to be located in a fluid such that, when the fluid moves, it generates vortices in the fluid so that a lift force is generated on the first part, which produces an oscillating movement of the first part, which has an amplitude. The natural oscillation frequency of the first part may be adjusted to wind speed by way of magnets, which repel each other. Magnets may also be used to generate electrical currents in coils. The first part can have a diameter that increases with distance above the base of the generator.