An electromagnetic guide assembly, an elevator and a control method thereof. The electromagnetic guide assembly includes a first magnetic element for connecting to an elevator car and a second magnetic element for connecting to an elevator liftway; wherein the electromagnetic guide assembly comprises two states. In a first state, the first magnetic element and the second magnetic element abut against each other; and in a second state, the first magnetic element and the second magnetic element are separated from each other, and the first magnetic element and the second magnetic element are capable of generating a relative movement along the longitudinal direction of the elevator liftway.

The invention relates to an apparatus for vibration measurement on a machine, having a base plate for mounting on a measurement point of the machine, a magnetic retaining device for holding the base plate at the measurement point by magnetic force, a sensor for detecting vibrations, arranged on or in contact with the base plate, a sensor for detecting the magnetic flux density in the area of the retaining device, and a monitoring device for monitoring the coupling of the base plate to the measurement point by evaluating the detected magnetic flux density.

A magnetic apparatus (1) comprising a magnetizable surface (2) configured to anchor a one or more ferromagnetic elements in a removable manner and a plurality of magnetic poles (3), each provided with a free surface (4) thereof, the magnetizable surface (2) being at least partially defined by the free surfaces (4) of said plurality of magnetic poles (3) placed side by side; one part of said magnetic poles (3) has at least two measuring areas (5) on the free surface thereof, each measuring area (5) being associated with at least one sensor (6) adapted to detect a magnetic flux exiting from said area.

A tool for selectively engaging and disengaging one or more magnetic connectors to secure a panel. The tool includes a frame with one or more magnets. The magnets provide a magnetic flux to control the magnetic connectors. In use, the tool is positioned on a first side of the panel with the one or more connectors on the opposing second side. The magnetic flux from the one or more magnets controls the positioning of the connectors between engaged and disengaged positions.

The invention relates to an apparatus (100) and a method for the processing of magnetic particles (MP) provided in a processing chamber (114) with a binding region (116) to which said magnetic particles (MP) can (specifically) bind. Removal of unbound magnetic particles (MP) from the binding region (116) is achieved by first separating them from the binding region (116) by gravitational forces and then moving them further away by magnetic forces. Gravitational forces can for example be generated by tilting the binding region with a tilting unit (156). The prior separation by gravitational forces prevents that unbound magnetic particles (MP) are captured in a cluster with bound magnetic particles.

An automatic dispensing device for dispensing a volatile substance, the device comprising: a fan configured to generate airflow and dispense the volatile substance from the device; a drive apparatus having at least one electromagnetic coil connectable to a drive circuit; wherein the fan comprises at least one magnet located along an arc of the fan and the electromagnetic coil is configured to attract or repel the at least one magnet; wherein the drive circuit is configured to switch the current direction in the electromagnetic coil to sequentially attract and then repel the at least one magnet as the fan rotates.

In an interactive environment, a user action may dictate what type of action a base device performs using an entertainment object. In one embodiment, the base device includes a controllable electromagnet that uses magnetism to move one or more permanent magnetics mounted in or on the entertainment object. For example, the entertainment object may be a doll or character that jumps, vibrates, slides, or sways in response to a changing magnetic field generated by the electromagnet. Moreover, the user may wear headphones that determine the location of the base device (and the toy) relative to the user. Using this location, the headphones can output 3D positional audio that the user perceives as originating from the location of the entertainment object on the base device. The 3D positional audio can be outputted synchronously with the action performed by the entertainment object to further immerse the user in the interactive environment.

An electromagnetic bed for a workpiece includes an electromagnetic bed body having a top surface that includes magnetic blocks arranged in a rectangular array, at least one of the magnetic blocks has a positioning pin protruding from the second top surface, the at least one of the magnetic blocks being fixed in the electromagnetic bed body by a bolt, a bottom plate placed proximate to the second top surfaces, and a cover plate is arranged correspondingly with the electromagnetic bed body, the cover plate being made of a magnetic material, with the workpiece placed between the bottom plate and the cover plate.

An actuator includes a holder, a case, a support assembly, a first magnet, a second magnet, and a coil. The holder includes a sphere centered at a reference point and houses an optical module. The case houses the holder. The support assembly is in the case and supports the holder in a manner rotatable about the reference point. The first magnet is on a portion of the sphere in a first radial direction from the reference point. The second magnet is on a portion of the sphere in a second radial direction from the reference point. The coil is in the case and is energized to generate a magnetic field acting on the first magnet and the second magnet. The first magnet and the second magnet are located asymmetric to each other with respect to the reference point and have different lengths in a circumferential direction of the holder.

A novel, simple, inexpensive and universal device and method for manipulating a magnetic object with at least a portion thereof having a substantially prismatic shape with side surfaces and an end surface such as a fastener, bolt, nut, plug, screw, and the like is disclosed. One embodiment of the device includes a head assembly having a magnetic field. The head assembly includes a body and a magnetic pole piece. The body serves to support the magnetic pole piece and the magnetic pole piece is configured to contact no more than two side surfaces of the magnetic object. The magnetic pole piece is also constructed and arranged to concentrate and shape the magnetic field into the magnetic object. The head assembly is further configured to be spatially open opposite from the magnetic pole piece so as to receive and contact the magnetic object.