Abstract: A voice-coil type cooler motor magnet assembly includes at least one radially polarized ring magnet disposed on a ferromagnetic hub. At least one quadrature magnet is disposed on the hub on each longitudinal side of the at least one ring magnet. Each quadrature magnet is polarized in a direction toward the at least one ring magnet. The hub, the at least one radially polarized ring magnet and the quadrature magnets are disposed in a ferromagnetic outer housing.

Abstract: A magnetic device includes a hub and a plurality of alternatingly polarized pole magnets disposed on a surface of the hub. A polarization direction of the pole magnets is perpendicular to a surface of the hub. A quadrature magnet is disposed in each space between adjacent pole magnets, wherein a size and shape of the pole magnets and the quadrature magnets are configured such that an amplitude distribution of a magnetic field of the device is substantially sinusoidal with respect to position along the hub.

Abstract: An apparatus for resuspending or maintaining suspension of magnetic beads in a reagent tray includes a di-pole magnet assembly disposed proximate the reagent tray. The di-pole magnet assembly inducing a static magnetic field having an amplitude gradient in a material disposed in the reagent tray. The di-pole magnet assembly magnetic field is movable with respect to the reagent tray. In some embodiments the magnetic field or the magnet assembly is movable linearly, rotationally or both linearly and rotationally with respect to the reagent tray.

Abstract: An illumination apparatus includes a housing having at least one electrically operated illumination source. The housing has a plurality of openings corresponding in position to each well or tube in a well tray, a tube tray or a tube strip. The illumination source is configured to provide light to each opening. A magnetic separator having well or tube openings therein corresponding in position to a position of each opening in the housing is disposed on top of the housing. The well tray, tube tray or tube strip comprises a plurality of wells or tubes positioned to correspond to each well or tube opening in the magnetic separator.

Abstract: A method for constructing a permanent magnet assembly by using a non-magnetic frame between individual magnet segments to restrain the movement of the magnet segments. The frame restricts the movement of the magnets during assembly. The frame also provides an effective system for replacing magnets in the existing assembly.

Abstract: A magnetic circuit is shaped to generate an essentially uniform magnetic field parallel across the length of a container, and an essentially uniform magnetic field gradient along the length of the container as well. The dot product of the magnetic field and magnetic field gradient, known as the relative force density, is substantially uniform over the entire container, thereby causing particles to uniformly separate throughout the container.

Abstract: Embodiments relate to manipulating and controlling the magnetic field profile of a magnetron within a sputtering system dynamically (i.e., in real time), to most effectively utilize the target material as required by any stage of its erosion and to sputter deposit films with a desired profile or characteristics. In particular, embodiments relate to dynamic positional and rotational control of the magnetron or individual elements of the magnetron to alter the magnetic field profile of the magnetron during deposition.

Abstract: A method for constructing a permanent magnet assembly by using a non-magnetic frame between individual magnet segments to restrain the movement of the magnet segments. The frame restricts the movement of the magnets during assembly. The frame also provides an effective system for replacing magnets in the existing assembly.

Abstract: A magnetic circuit is shaped to generate an essentially uniform magnetic field parallel across the length of a container, and an essentially uniform magnetic field gradient along the length of the container as well. The dot product of the magnetic field and magnetic field gradient, known as the relative force density, is substantially uniform over the entire container, thereby causing particles to uniformly separate throughout the container.