Abstract: An electromagnetic actuating device includes a sleeve, an armature situated radially inside the sleeve, and an electromagnetic coil situated radially outside the sleeve, the armature having a first armature end face on one end and a second armature end face on the opposite end. The sleeve has a channel on or in the sleeve wall, which extends in the longitudinal direction of the sleeve and forms a fluid connection between the armature end faces.

Abstract: Levitation and Propulsion Unit-2 (LPU-2) is a thrust generating device able to generate resultant force to create motion without mass flow and/or momentum exchange. The technology primarily uses electromagnetic energy, permanent magnetic repulsive energy and kinetic energy, to generate internal resultant thrust or motion. This thrust generating device comprises of one or two rapid action enable and high driving force electromagnet moving magnet linear actuators with minimum moving parts. The technology mainly leverages on compression and expansion of compressed repulsive magnetic flux. Through regulation and systematic control of current to each electromagnet, the device is able to generate resultant force or motion without external interaction.

Abstract: Devices for detachable attachment to a ferromagnetic object and/or surface are disclosed. The device may comprise a core housing defining a pocket, a magnet disposed in the pocket, and a baseplate fixed to the magnet sheet assembly. The baseplate may include a pivot portion that engages a corresponding portion of the core housing to form a hinge joint such that the baseplate and the magnetic sheet assembly selectively pivot about a pivot axis of the hinge joint relative to the core housing. The camming mechanism may apply a camming force to a portion of the baseplate and the camming force may urge the magnet and the baseplate to pivot about the pivot axis of the hinge joint.

Abstract: A driving module comprises: a housing; a housing; a solenoid comprising a shaft arranged inside the housing so as to make a straight movement; and a printed circuit board arranged on the solenoid, wherein the solenoid comprises a stator, a plunger arranged inside the stator, a shaft coupled to the plunger, and a sensor magnet arranged on the upper side of the shaft, and the printed circuit board comprises a hole penetrated by the shaft and comprises a position detecting sensor arranged on the printed circuit board to be adjacent to the hole.

Abstract: A rotation operation device using magnetic force, which is compact and enables a user to perform a proper operation. The rotation operation device includes a rotation operation member rotatable about a predetermined axis. A ring-shaped magnet is magnetized in a magnetization direction parallel to the predetermined axis such that magnetic poles alternate. The magnet rotates about the predetermined axis along with rotation of the rotation operation member. A first magnetic body have first tooth portions formed at predetermined intervals along a circumferential direction and extending in radial directions of the magnet. The magnet overlaps with the first tooth portions in a direction of the predetermined axis. An operating physical force is generated according to changes in positions of the magnetic poles and the first tooth portions, which are caused by rotation of the magnet.

Abstract: A rotor assembly comprising rotatable element defining a periphery, a first set of elements defining magnetic pole regions and a second set of elements defining interpolar regions that alternately placed about the periphery. The rotor assembly further comprising a containment band circumscribing the first set of elements and the second set of elements. The containment band defining a first set of material and a second set of material, with each overlying at least a portion of the first set of elements or the second set of elements.

Abstract: Disclosed is a magnetic latching relay capable of accurately positioning a magnetic circuit, comprising a magnetic circuit portion and a base, the magnetic circuit portion comprising a yoke, an iron core, an armature, and a bobbin, the iron core is inserted into a through-hole of the bobbin, and the yoke comprises two yokes, and one side of each of the two yokes is connected to the iron core respectively at the both ends of the through-hole of the bobbin, and the armature is fitted between the other side of each of the two yokes, the magnetic circuit portion is mounted on the base, with the axis of the through-hole of the bobbin in a horizontal manner; in at least one of the two yokes, a positioning convex portion is further provided on the outward face of the side of the yoke, positioning grooves are formed in at least one side wall to be engaged with the positioning convex portion of the yoke, to realize the positioning of the magnetic circuit portions on the base in the horizontal direction perpendicular t

Abstract: A coaxial RF switch comprising a pair of coaxial conductors and a confinement flexure affixing to a conductor reed, wherein said confinement flexure having at least one fixed end such that the conductor reed can move freely and consistently to make and break the connections to the coaxial conductors.

Abstract: A multidimension-controllable levitation switch comprising a switch levitating body having a magnet; a magnetic levitation support mechanism for supporting the switch body in a stably levitated state relative thereto; magnetic detector means for detecting magnetic field variation of the switch body relative thereto and outputting a correspondingly varied magnetic signal; and a switch control circuit receiving the varied magnetic signal output by the magnetic detector means, and generating a corresponding switch signal based on the varied magnetic signal received. The multidimension-controllable levitation switch or switch system of the present invention may be applied to various electrical appliances, wherein the switch-shift operation of the electric device can be achieved simply by applying a push or press action on the levitating body, and thus incorporates operational convenience as well as novelty.

Abstract: A relay device may include an armature that moves between a first position that electrically couples the armature to a first contact and a second position that electrically couples the armature to a second contact. The relay device may also include a relay coil that receives a voltage to magnetize the relay coil, thereby causing the armature to move from the first position to the second position. The relay device also includes an additional coil that couples in series with the relay coil via a switch. The relay device also includes a drive circuit that causes the switch to couple the additional coil to the relay coil in response to receiving a signal indicative of the relay coil energizing.

Abstract: An overload relay is disclosed in which a single operator coil is controlled for both tripping and resetting. A permanent magnet and a spring make the device bi-stable, so the coil may be unpowered when in the trip and reset states. Energization of the coil overcomes the magnet to allow tripping, while energization in an opposite direction adds to the magnet force to reset the device. An electromagnetic activation path overrides a mechanical activation path for electromagnetic tripping despite attempted manual resetting. The device may be pulse width modulated to reduce power consumption.

Abstract: A programmable permanent magnet actuator, a magnetic field generation apparatus and a method of controlling thereof. The actuator has a first body that is a ferromagnetic material, a second body that is a single magnetized ferromagnet and a magnetic field generation device associable to the second body to generate a magnetic field in proximity with the second body. The actuator also has a controller adapted to control the magnetic field generation device to generate a controlled magnetic field. The controlled magnetic field is adapted to modify a magnetization of the second body such as to produce with the second body a required magnetic field to move one of the first or the second body with respect to one another according to a desired position or a desired torque. The desired position or the desired torque is maintained even after the application of the controlled magnetic field.

Abstract: An offset of an output voltage of a magnetic sensor caused by an external magnetic field is removed. A motor according to a disclosed embodiment includes: a first magnetic sensor that detects a rotational position of a rotor; a second magnetic sensor that is arranged at a predetermined mechanical angle with respect to the first magnetic sensor and detects the rotational position of the rotor; a signal amplifier that amplifies a difference between a first signal which is a signal output from the first magnetic sensor and a second signal which is a signal output from the second magnetic sensor; and a pulse signal generator that converts an output signal of the signal amplifier into a pulse signal.

Abstract: An offset of an output voltage of a magnetic sensor caused by an external magnetic field is removed. A motor according to a disclosed embodiment includes: a first magnetic sensor that detects a rotational position of a rotor; a second magnetic sensor arranged at a position shifted by ?/N in a rotation direction of the rotor with respect to the first magnetic sensor when the number of pole pairs is N; a signal amplifier that amplifies a difference between a first signal which is a signal output from the first magnetic sensor and a second signal which is a signal output from the second magnetic sensor; and a pulse signal generation unit that converts an output signal of the signal amplifier into a pulse signal.

Abstract: The disclosure provides a hybrid magnet structure which includes two dipole magnets assemblies arranged oppositely, and each dipole magnet assembly includes a permanent magnet, two iron cores, and a moveable magnetic field shunt element. The hybrid magnet structure is adapted to focus particle beams of different positions by applying an adjustable gradient magnetic field in the horizontal or vertical direction of the particle beam. By passing the charged particle beams through the gradient magnetic field established between the two dipole magnets, the aspect of focusing the charged particle beam is achieved. In addition, the intensity of the gradient magnetic field can be altered by adjusting the gap between the movable magnetic field shunt element and the permanent magnet, thereby controlling the particle beam size on a specific axis for different energies or masses of the charge particles.

Abstract: Described herein are concepts, system and techniques which provide a means to construct robust high-field superconducting magnets using simple fabrication techniques and modular components that scale well toward commercialization. The resulting magnet assembly—which utilizes non-insulated, high temperature superconducting tapes (HTS) and provides for optimized coolant pathways—is inherently strong structurally, which enables maximum utilization of the high magnetic fields available with HTS technology. In addition, the concepts described herein provide for control of quench-induced current distributions within the tape stack and surrounding superstructure to safely dissipate quench energy, while at the same time obtaining acceptable magnet charge time. The net result is a structurally and thermally robust, high-field magnet assembly that is passively protected against quench fault conditions.

Abstract: A support structure for supporting a flexible display screen includes: a plurality of electromagnets and a controller electrically coupled to the plurality of electromagnets. Each electromagnet has a first surface and a second surface. The first surface is configured to be attached and secured to a flexible display screen so as to support the flexible display screen, and the second surface is at an acute angle to the first surface. When the flexible display screen is extended, the controller controls two adjacent electromagnets to repel each other. When the flexible display screen is bent, the controller controls two adjacent electromagnets to attract each other.

Abstract: An array of permanent magnets and magnetic materials create a large focused magnetic field capable of reducing the viscosity of blood in a human subject, and consequently reducing the blood pressure of the subject. The magnets can be arranged in highly tunable and customizable configurations suited to unique and individual applications.

Abstract: A resistor assembly for a motor drive circuit for an electric motor assembly can have a generally circular shape. The resistor assembly includes a resistor with input and output connectors and a pair of conductor elements extending from the input and output connectors. The pair of conductor elements extend adjacent each other along a curved serpentine path so the resistor has a generally circular outer perimeter and a generally circular inner perimeter. The curved serpentine path of the pair of conductor elements allows current to flow through the pair of conductor elements so that magnetic fields generated by the current flow through the pair of conductor elements cancel each other, thereby providing the resistor with low inductance.

Abstract: Disclosed herein are passive triggering mechanisms for activation of pyrotechnic features within electrical switching devices, such as contactor devices and fuse devices. The activation of the pyrotechnic features is configured to change the configuration of the internal components of the switching device and prevent current flow through the device. In some embodiments, the triggering mechanisms comprise features that respond to a magnetic field, such as a reed switch. In some embodiments, threshold strength of a magnetic field needed to trigger the passive triggering mechanism, which corresponds to a threshold level of current running through the switching devices indicating a dangerous overcurrent, can be adjusted based upon the distance between the passive triggering mechanism and a portion of the device such as a power terminal or feature connected to a power terminal.