The disclosed system may include (1) a conductive coil, where at least a portion of the coil is oriented along a first direction and orthogonal to a second direction, (2) a magnetic field generation structure that generates a magnetic field through the coil along a third direction orthogonal to the first and second directions, (3) a detection subsystem that determines a location of the coil relative to the field, (4) a force-to-current converter that (a) receives a force command to alter a relative location of the coil and the field, and (b) issues, in response to the force command, a current command based on the location of the coil relative to the field, and (5) a coil driver that generates, in response to the current command, current in the coil to generate a force between the coil and the field along the second direction. Various other embodiments are also disclosed.

Techniques regarding operating one or more parallel dipole line traps are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a parallel dipole line trap comprising a diamagnetic object positioned between a plurality of dipole line magnets. The system can also comprise a split photodetector sensor positioned adjacent to the parallel dipole line trap. The split photodetector sensor can detect a displacement of the diamagnetic object.

Magnetic levitation mounted and controlled payload on a curved surface. Embodiments herein relate to magnetic levitation, and more particularly to levitating a payload using magnetic levitation. Embodiments herein disclose a payload mounted on a curved surface using magnetic levitation. Embodiments herein disclose a payload mounted on a curved surface using magnetic levitation, wherein the device can move over the surface using magnetic levitation.

A helmet that includes an outer shell having at least a first outer magnetic member, an inner shell having at least a first inner magnetic member, and padding secured inside the inner shell. The first inner magnetic member is spaced from and opposed to the first outer magnetic member, such that the first inner magnetic member repels the first outer magnetic member. The outer shell is connected to the inner shell.

A helmet that includes an outer shell having at least a first outer magnetic member, an inner shell having at least a first inner magnetic member, and padding secured inside the inner shell. The first inner magnetic member is spaced from and opposed to the first outer magnetic member, such that the first inner magnetic member repels the first outer magnetic member. The outer shell is connected to the inner shell.

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.

The invention describes a device suspension arrangement comprising a ceiling region, at least one mobile device comprising a ceiling interface with at least one freely rotatable element arranged to partially protrude from the ceiling interface to facilitate movement of the suspended device to an arbitrary ceiling position; and at least one magnetic field generator realised to generate a magnetic field between the ceiling region and the ceiling interface of a mobile device. The invention further describes a mobile device for use in such a device suspension arrangement.

A motor-actuator device using a PDL trap system is provided. In one aspect, a motor-actuator device includes: a PDL trap having a pair of diametric magnets, and a levitated diamagnetic rotor in between the diametric magnets, wherein at least a portion of the diamagnetic rotor has a rectangular shape; and an electrode shell having at least one pair of semicircular electrodes which surround, but are in a non-contact position with the levitated diamagnetic rotor and each other. A system including the motor-actuator device and an electrode driver circuit is also provided, as is a method of operating the motor-actuator device.

A magnetic installation base provided by the present invention comprises: a base applicable to be connected with an acceleration sensor; and a magnet set installed on the base and having an adsorption surface formed at an end far away from the base. The magnet set comprises several magnets, and the ends of adjacent magnets forming the adsorption surface have opposite polarities. During use, the magnetic installation base is adsorbed onto the surface of a to-be-tested object, therefore, the appearance of the to-be-tested object does not need to be destroyed, moreover, since the ends of adjacent magnets forming the adsorption surface have opposite polarities, the adsorption surface is ensured to have sufficient magnetic lines, and the adsorption capacity is larger.

A movement device comprising a first and a second assembly, the first assembly being composed of a plurality of subassemblies. Two directly adjacent subassemblies are conterminous with each other at a boundary line. The two subassemblies form at least one first pair of directly adjacent first permanent-magnet arrangements that are separated from each other by the boundary line. The two first permanent-magnet arrangements of the first pair are each arranged with a boundary distance from the boundary line that is reduced with respect to a spacing distance, such that they mutually have the spacing distance. There are present in each case within the said two subassemblies at least one second pair of directly adjacent first permanent-magnet arrangements that mutually have the spacing distance.