A magnetic device for processing biological objects including a soft magnetic center pole having a bottom end and a tapered tip end; first and second soft magnetic side poles disposed on opposite sides of the soft magnetic center pole and respectively having first and second bottom ends, the first and second soft magnetic side poles respectively having first and second top ends that bend inward toward the soft magnetic center pole with a first outward side of the first top end and a second outward side of the second top end being substantially coplanar; a magnetic flux source generating magnetic flux in the soft magnetic center pole and the first and second soft magnetic side poles; and a channel plate having a channel embedded therein and a first planar surface that is operable to be in contact with or in close proximity to the first and second outward sides.

The present disclosure provides an exciter and an electronic product. The exciter comprises: a magnetic circuit assembly comprising a first housing and a magnet, and the magnet is connected to the first housing; a coil assembly comprising a second housing and a coil, and the coil is disposed in a magnetic field formed by the magnet, wherein the coil assembly is configured to be capable of generating a vibration relative to the magnetic circuit assembly, the coil is formed by winding a wire having a polygonal cross section. According to the present disclosure, the coil wire has a polygonal cross section, so that an interval between the wires can be reduced in the wound coil, the number of turns of the coil is increased in the same space, the effective length of the coil is increased, and the driving force generated from the coil is increased.

The present disclosure provides an exciter and an electronic product. The exciter comprises: a magnetic circuit assembly comprising a first housing and a magnet, and the magnet is connected to the first housing; a coil assembly comprising a second housing and a coil, and the coil is disposed in a magnetic field formed by the magnet, wherein the coil assembly is configured to be capable of generating a vibration relative to the magnetic circuit assembly, the coil is formed by winding a wire having a polygonal cross section. According to the present disclosure, the coil wire has a polygonal cross section, so that an interval between the wires can be reduced in the wound coil, the number of turns of the coil is increased in the same space, the effective length of the coil is increased, and the driving force generated from the coil is increased.

An electropermanent magnet array is provided. The electropermanent magnet array includes one or more of a plurality of electropermanent magnets, arranged in a parallel fashion, a plurality of switching circuits, each switching circuit coupled to a different electropermanent magnet of the plurality of electropermanent magnets, and a control circuit, coupled to the plurality of switching circuits. The control circuit is configured to receive commands to control the plurality of switching circuits to demagnetize the plurality of electropermanent magnets, magnetize the plurality of electropermanent magnets to produce a first magnetic field with a strength and an attraction distance and magnetize the plurality of electropermanent magnets to produce a second magnetic field with a lower strength and greater attraction distance than the first magnetic field.

An electropermanent magnet array is provided. The electropermanent magnet array includes one or more of a plurality of electropermanent magnets, arranged in a parallel fashion, a plurality of switching circuits, each switching circuit coupled to a different electropermanent magnet of the plurality of electropermanent magnets, and a control circuit, coupled to the plurality of switching circuits. The control circuit is configured to receive commands to control the plurality of switching circuits to demagnetize the plurality of electropermanent magnets, magnetize the plurality of electropermanent magnets to produce a first magnetic field with a strength and an attraction distance and magnetize the plurality of electropermanent magnets to produce a second magnetic field with a lower strength and greater attraction distance than the first magnetic field.

The present invention provides a magnetron system, comprising a baseplate assembly. The baseplate assembly defining a housing portion and a power feedthrough. A sputtering target is disposed within the housing portion of the baseplate assembly. An electromagnetic assembly is disposed within the housing portion of the baseplate assembly. The electromagnetic assembly comprising a plurality of electromagnet pairs and a plurality of magnet pairs, wherein the plurality of electromagnet pairs and the plurality of magnet pairs are arranged in an alternating order such that at least one electromagnet pair of the plurality of electromagnet pairs is juxtapositioned between two magnet pairs of the plurality of magnet pairs, and at least one magnet pair of the plurality of magnet pairs is juxtapositioned between two electromagnet pairs of the plurality of electromagnet pairs.

The present invention provides a magnetron system, comprising a baseplate assembly. The baseplate assembly defining a housing portion and a power feedthrough. A sputtering target is disposed within the housing portion of the baseplate assembly. An electromagnetic assembly is disposed within the housing portion of the baseplate assembly. The electromagnetic assembly comprising a plurality of electromagnet pairs and a plurality of magnet pairs, wherein the plurality of electromagnet pairs and the plurality of magnet pairs are arranged in an alternating order such that at least one electromagnet pair of the plurality of electromagnet pairs is juxtapositioned between two magnet pairs of the plurality of magnet pairs, and at least one magnet pair of the plurality of magnet pairs is juxtapositioned between two electromagnet pairs of the plurality of electromagnet pairs.

A transmission electron microscope sample holder capable of applying a magnetic field is provided. The transmission electron microscope sample holder includes a holder body and a holder head. The holder head is arranged at an end of the holder body and provided with a magnetic field generation device. The magnetic field generation device is provided with magnetic field generation end surface. The thickness of the magnetic field generation end surface is in a range of 100 nanometers to 280 micrometers. And the thickness is of a size that is parallel to a direction of an electron beam in a transmission electron microscope.

An integrated electromagnet comprises a magnetic yoke and magnetic poles in two rows. An axis of magnetic core in the magnetic pole is perpendicular to the magnetic yoke. The magnetic poles comprise first and second magnetic poles that are arranged alternatively in a row. The first magnetic pole in any row is adjacent to the second magnetic pole in the other row. The first magnetic poles in a row are connected to a one-way output controller and the second magnetic poles in a row are connected to a bidirectional output controller. In a guiding state, the magnetic poles in a row have a same polarity, and a polarity of the magnetic poles in one row is opposite to that in the other row; current output by the bidirectional output controller in a braking state has direction opposite to current output by the bidirectional output controller in the guiding state.

A magnetic field application device according to an embodiment includes a first coil assembly and a second coil assembly spaced apart in parallel from each other, a power supply configured to apply respective currents to the first coil assembly and the second coil assembly, a controller, and a resonator accommodation unit disposed between the first coil assembly and the second coil assembly, wherein each of the first coil assembly and the second coil includes a coil configured to generate a magnetic field, a guide member connected to a terminal of the coil, a magnetic material mount connected to a terminal of the guide member, and a magnetic material fixed to the magnetic material mount, and wherein the controller is configured to control the currents applied from the power supply to the first coil assembly and the second coil assembly.