A lifting device includes a base body. The base body includes a supporting surface and defines a cavity. The cavity extends through the supporting surface. The lifting device further includes a magnetic bar, a spring, and a coil in the cavity. The spring includes a first end fixed to an end of the magnetic bar away from the supporting surface and a second end fixed on a wall of the cavity. The coil surrounds the magnetic bar. When the coil is applied with a voltage to generate an electromagnetic induction, the magnetic bar is driven to move out of the cavity from the supporting surface or move to compress the spring.

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.

The disclosure relates to a method for operating a movement apparatus having a first assembly and a second assembly. The first assembly includes a base and several permanent-magnet arrangements that are connected to the base via actuators such that they move as a whole relative to the base in at least one degree of freedom by the assigned actuator, the second assembly including a base and a permanent-magnet arrangement arranged firmly relative to the base. Position controllers are provided, each with a controlled variable and with a correcting variable. The controlled variable is one of six possible degrees of freedom with regard to a relative position between the first and second assembly. The correcting variable represents a force or a torque that has been assigned to the degree of freedom. Desired positions of the actuators are computed from the correcting variables and the actuators are set accordingly.

Generally, a system for generating a magnetic field having a desired magnetic field strength and/or a desired magnetic field direction is provided. The system can include a plurality of magnetic segments and/or a plurality of ferromagnetic segments. Each magnetic segment can be positioned adjacent to at least one of the plurality of magnetic segments. Each ferromagnetic segment can be positioned adjacent to at least one of the plurality of magnetic segments. In various embodiments, a size, shape, positioning and/or number of magnetic segments and/or ferromagnetic segments in the system, as well as a magnetization direction of the magnetic segments can be predetermined based on, for example, predetermined parameters of the system (e.g., a desired magnetic field strength, direction and/or uniformity of the magnetic field, a desired elimination of a magnetic fringe field and/or total weight of the system) and/or based on a desired application of the system (e.g., performing a magnetic resonance imaging of at least a portion of a patient and/or performing a magnetic resonance spectroscopy of a sample).

Lack of gravity is a cause of major health concerns for astronauts travelling or living in space. The systems, in accordance with the embodiments of the invention, provide Artificial Gravity. The users or subjects experience Artificial Gravity while exercising in an environment without gravity, such as space. Another embodiment includes chambers shielded by multilayer magnetic toroid and multilayer soft magnetic layered clothing that shields astronauts from radiation and stray magnetic fields while providing a gravitational (artificial gravity) effect.

A lifting device includes a base body. The the base body includes a supporting surface and defines a cavity. The cavity extends through the supporting surface. The lifting device further includes a magnetic bar, a spring, and a coil in the cavity. The spring includes a first end fixed to an end of the magnetic bar away from the supporting surface and a second end fixed on a wall of the cavity. The coil surrounds the magnetic bar. When the coil is applied with a voltage to generate an electromagnetic induction, the magnetic bar is driven to move out of the cavity from the supporting surface or move to compress the spring.

A device for generating an electric charge, having: a base; at last one capacitor; at least one magnet; a cover; a splitter; a load; a conductive core; a frictionless surface; and at least one discharge point. The at least one capacitor adapted and configured to store electricity generated from the electric charge. The splitter is adapted and configured to receive a first portion of electricity from the conductive core and divert a second portion of electricity back to the at least one capacitor and further divert a third portion of electricity to the load. The load is adapted and configured to store electricity and use a fraction of the total electricity generated by the device. The at least one magnet is adapted and configured to levitate and rotate on an electromagnetic rail around said conductive core in an infinite loop, wherein said rotation causes a magnetic field.

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 force constant compensator that (a) receives a current command to alter a relative location of the coil and the field, and (b) adjusts the current command based on at least one physical characteristic of the system that affects a relationship between current in the coil and resulting force between the coil and the field along the second direction, and (4) a coil driver that generates, in response to the adjusted current command, a first current in the coil to generate a force between the coil and the field. Other embodiments are also disclosed.

A microrobot assembly system includes a substrate containing conductive traces formed into at least one holding zone and one moving zone, a diamagnetic layer on the substrate, at least two magnetic structures movable across the diamagnetic layer in response to voltages applied to the conductive traces, wherein the holding zone holds one of the magnetic structures and the moving zone allows another of the magnetic structures to attach to the magnetic structure being held. The system may include a plate spaced above the substrate and rails to guide the moving magnetic structures.

Generally, a system for generating a magnetic field having a desired magnetic field strength and/or a desired magnetic field direction is provided. The system can include a plurality of magnetic segments and/or a plurality of ferromagnetic segments. Each magnetic segment can be positioned adjacent to at least one of the plurality of magnetic segments. Each ferromagnetic segment can be positioned adjacent to at least one of the plurality of magnetic segments. In various embodiments, a size, shape, positioning and/or number of magnetic segments and/or ferromagnetic segments in the system, as well as a magnetization direction of the magnetic segments can be predetermined based on, for example, predetermined parameters of the system (e.g., a desired magnetic field strength, direction and/or uniformity of the magnetic field, a desired elimination of a magnetic fringe field and/or total weight of the system) and/or based on a desired application of the system (e.g., performing a magnetic resonance imaging of at least a portion of a patient and/or performing a magnetic resonance spectroscopy of a sample).