Abstract: A planar spring has an outer ring, an inner ring, and two elastic components. The inner ring is disposed in the outer ring, and forms a space therebetween. The two elastic components are disposed in the space, and are symmetric with respect to a central line at a spaced interval. Each elastic component has an outer connecting portion, an inner connecting portion, and a flexible strip. The outer connecting portion is connected to the outer ring at a first connecting point. The inner connecting portion is connected to the inner ring at a second connecting point. The flexible strip is connected between the outer connecting portion and the inner connecting portion. An included angle between the first connecting point and the second connecting point from the center is greater than or equal to 90 degrees and less than 180 degrees. A rotational series elastic actuator is also provided.

Abstract: Disclosed herein is a camera module comprising: a circuit board; a frame coupled to the circuit board; an image sensor on the circuit board; a bobbin on the frame, a plurality of lenses being inside the bobbin; a coil wound on the bobbin, the bobbin moving to two directions based on a current applied to the coil; a magnet configured to interact the coil; and a yoke on the frame, the magnet being at an inner side of the yoke, wherein the bobbin moves to a first direction when a forward current is applied to the coil and to a second direction when a reverse current is applied to the coil.

Abstract: A linear actuator is provided that has a configuration capable of inhibiting contact between an inner core and a plate spring that is connected to the inner core and an outer core, and which is realized by a configuration that is easy to assemble. A stator is arranged in an opening section of a through-hole in the inner core, and has a spacer through which a shaft passes. An outer frame section of the plate spring is connected to the outer core, and a fixed section of the plate spring is connected to the inner core through the spacer in a state in which the shaft passes therethrough. The spacer includes a penetration section having an insertion hole which the shaft is inserted through, and restriction sections and which restrict a displacement of a predetermined amount or more of the plate spring to the inner core side.

Abstract: A motor includes a lead wire insert hole arranged to have a lead wire extending from any of coils pass therethrough, and a bushing inserted in the lead wire insert hole. The bushing includes a body portion arranged to extend in a first direction; a plurality of through holes each of which is arranged to pass through the body portion in the first direction; and a plurality of projecting portions each of which is arranged to extend in the first direction, and project from a lateral surface of the body portion in a direction perpendicular to the first direction. Each through hole includes a cylindrical first hole portion arranged to have an opening on a first side in the first direction; and a second hole portion arranged to have an opening on a second side in the first direction, and to be continuous with the first hole portion, and including a slanting surface arranged to decrease in a diameter toward the first hole portion. A portion of the lead wire is arranged in a corresponding one of the through holes.

Abstract: A vibration motor includes a housing, an electromagnetic driving device accommodated in the housing, a vibrator, and an elastic component elastically supporting the vibrator. The vibrator has a hollow portion penetrating through upper and lower surfaces of the vibrator in a direction perpendicular to vibrating direction, and the hollow portion is defined by a first inner wall along the vibrating direction and a second inner wall connected with the first inner wall, the electromagnetic driving device is in the hollow portion and fixed on the housing, a distance between the electromagnetic driving device and the second inner wall in vibrating direction is greater than the maximum amplitude of the vibrator, on the housing, a stopper is provided between the inner wall and the electromagnetic driving device. The present disclosure can bring the product reliability under premise of guaranteeing the driving force and the size.

Abstract: A motor stator includes a stator core, a winding wound around the stator core, and a circuit board connected with the winding. The circuit board forms a through hole. The through hole has an opening formed at an outer edge of the circuit board. A wire terminal of the winding slides into the through hole via the opening, and a distal end of the wire terminal is bent and soldered to a surface of the circuit board after passing through the through hole.

Abstract: A lens moving apparatus includes a bobbin adapted to move upward and downward in a first direction, a housing in which the bobbin is accommodated and which is movable upward and downward in the first direction, a cover member accommodating the bobbin and the housing, and a base to which a lower portion of the cover member is coupled, wherein the cover member has an opening formed in an upper face thereof, and is provided at an area thereof surrounding the opening with a first stopper for limiting a distance by which the bobbin moves upward.

Abstract: A motion guide apparatus cooling nozzle is provided which can gas-cool a motion guide apparatus. Cooling nozzles 1a and 1b of the present invention are mounted on a block 4 of the motion guide apparatus to cool at least one of a guide rail 2 and a block 4 that is assembled to the guide rail 2 via a rolling element 6 in such a manner as to be movable relatively. The cooling nozzles 1a and 1b include an inner passage 18 into which gas is introduced, an opening 12a configured to emit a gas flow introduced into the inner passage 18, a deflection surface 22a that is provided adjacently to the opening 12a to bend the gas flow emitted from the opening 12a, and a guiding surface 32a configured to attract gas outside the cooling nozzles 1a and 1b.

Abstract: An apparatus includes a lamination stack for a motor stator. The lamination stack comprises a plurality of conductive laminates. The laminates are coupled to each other in a stacking direction along a stacking axis. Each laminate comprises a base, a plurality of fins extending from a first side of the base, a plurality of spacings between the fins, a row of teeth extending from a second side of the base opposite the first side, each tooth constructed and arranged to communicate with windings of a conductive coil, and a plurality of spacings between the teeth. The lamination stack also comprises a plurality of first channels formed from the spacings between the fins and a plurality of second channels formed from the spacings between the teeth. The first and second channels extend along the stacking axis.

Abstract: A surgical device, the surgical device including a mounting part mounted on a robot arm of a surgical robot; an extension part extending from the mounting part; a joint driving part that comprises a driving motor having a driving axis, that comprises a driving rod connected to the driving axis and reciprocating, and that is connected to an end of the extension part; and a joint part that is connected to the joint driving part, that is driven at one or more degrees of freedom by the driving rod, wherein the driving motor is connected to the driving axis with an elastic connection member.

Abstract: An electromechanical flywheel machine includes a multi-wall containment system used in connection with a motor-generator for exchanging energy with a flywheel mass.

Abstract: Provided is a linear actuator which is simple in structure, inexpensive to manufacture, in addition, has small magnetic leakage, and can provide a large inertial force without increasing the number of parts and weight.

Abstract: The axial lengths of coupling portions of a flywheel, a rotor shaft, and a pump shaft are reduced to reduce the axial length of an entire power unit. A crankshaft 4 and a flywheel 8 are directly coupled to each other and the flywheel 8 and a rotor shaft 5 are directly coupled to each other. A coupling 20 is directly coupled to an end face of the rotor shaft 5 on the opposite side to the flywheel 8. A pump shaft 6 is connected to the coupling 20. Coupling surfaces of the flywheel 8 and the rotor shaft 5 and coupling surfaces the rotor shaft 5 and the coupling 20 are arranged within a width range of a coil 19.

Abstract: Provided herein is a linear motor in which a back yoke can readily be mounted onto a linear motor body. The linear motor body is surrounded or wrapped by the back yoke that works to form part of a magnetic circuit of the linear motor body. The back yoke assembly includes first and second divided assemblies. The first and second divided assemblies have the same dimension and shape, and are each formed by press working a silicon steel plate or a magnetic plate made of SPCC material.

Abstract: A linear motor including a stator including electrical coils; a runner including permanent magnets; and a back iron device, wherein the runner is arranged between the stator and the back iron device and offset from the stator and the back iron device, wherein the runner is moveable relative to the stator and the back iron device; wherein the permanent magnets are arranged in a section of the runner which section is provided between the stator and the back iron device, wherein the runner is gas supported relative to the stator and/or relative to the back iron device through a gas pressure bearing, wherein the runner is provided with inner channels which are in fluid connection with a pressurized gas supply device and wherein the gas outlet nozzles are in fluid connection with an interior of the channels, wherein the gas pressure bearing includes at least a first bearing surface.

Abstract: A linear actuator displaces a relative position between a guide rail and a slide table, which is arranged in confronting relation to the guide rail. Projections are formed on opposite end sides of the guide rail, the projections extending along a direction of displacement and projecting toward the slide table. The slide table is disposed between the projections on the opposite end sides of the guide rail, with rigid balls being interposed therebetween. Guide grooves and guide grooves, which rollably support the balls, are provided on the projections on the opposite end sides of the guide rail and on the slide table. The guide grooves and the guide grooves apply, on the balls, a pressure caused by a magnetic attractive force of permanent magnets.

Abstract: A linear motor, comprises at least one stator device (14) with a plurality of permanent magnets (18, 18-1, 18-2) of different polarity and with at least one carrier rail (24), and at least one rotor device (12) with at least three electrical coils (44) and with at least one supporting means (26), which can be or which is supported on the carrier rail (24) of the stator device (14), wherein the rotor device (12) and the stator device (14) are moveable to and fro with respect to each other along a movement direction (FR) defined by the carrier rail (24) by interaction of magnetic fields of the permanent magnets (18, 18-1, 18-2) with the magnetic fields of the coils (44), through which current flows if required, wherein the stator device (14) is formed from at least one stator module (16-1, 16-2), wherein the stator module (16-1, 16-2) is configured such that a stator device (16) with two or more consecutively arranged stator modules (16-1, 16-2) can be formed, and wherein at the stator module (16-1, 16-2) at le

Abstract: A primary for a linear drive motor has first and second stacks, each with inner and outer teeth and a bearing mount. A magnet is disposed between the first and second stacks, and a coil wrapped is between the first and second stacks. A bearing is operatively mounted to at least one of the bearing mounts of the first and second stacks. The outer teeth of the first and second stacks may have a projection comprising the bearing mount. The bearing mount may be embedded within the stacks. The stacks may be assembled in a housing and the housing may have a first bearing outboard of the first stack, a second bearing outboard of the second stack, and a third bearing in staggered relationship with the first and second bearings across the housing in an arrangement bilaterally symmetric about an axis transverse to the direction of travel.

Abstract: A linear actuator that is configured such that a first tube and a second tube are relatively displaced in an axial direction, includes a rod that is provided in the first tube and whose one end is fixed to an end portion of the first tube, a plurality of permanent magnets that are held by the rod so as to be arranged in the axial direction, and a tubular coil holder that is provided in the second tube and holds a coil that faces the permanent magnets, wherein the first tube has a first linear guide portion with a cylindrical surface that extends in the axial direction around the coil holder, and the second tube has a second linear guide portion with a cylindrical surface that is faced to the first linear guide portion without a gap therebetween so as to be slidably fitted therewith.

Abstract: A voice coil motor for driving a lens group includes a housing, a first cover, a second cover, a movable member, and a plurality of magnets. The housing is a hollow and includes a top plate and four sidewalls protruding from the top plate. The movable member is movably received in a space defined by the housing and the first and second covers, and includes a barrel for receiving and being connected to the lens group, and a coil arranged around the barrel. The magnets are arranged between the housing and the movable member, stayed in contact with the sidewalls, and drive the movable member and the lens group to move in the housing when a current is supplied to the coil.

Abstract: A system contains a first actuator half containing a first pair of actuator coils and a second pair of actuator coils located above the first pair of actuator coils, wherein the first pair of actuator coils is connected to a first metallic backing. A second actuator half is also providing within the system, which contains a first pair of actuator coils and a second pair of actuator coils located above the first pair of actuator coils, wherein the first pair of actuator coils is connected to a second metallic backing. The system also contains a mechanical flexure suspension having at least one flexure supporting a permanent magnet that is capable of moving, wherein the mechanical flexure suspension is located between the first actuator half and the second actuator half.

Abstract: A direct drive motor comprises a first ring body and a second ring body. The first ring body is disposed on one side in an axial direction and on one side in a radial direction. The second ring body is disposed on the other side in the axial direction and on the other side in the radial direction. The first ring body includes a first tapered face on the other side in the axial direction and on the other side in the radial direction. The second ring body includes a second tapered face on the one side in the axial direction and on the one side in the radial direction. Either of the first or second ring body includes an air path. One of the first and second ring body includes a secondary side member, and the other ring body includes a primary side member.

Abstract: A positioning system for positioning a positioning unit along a longitudinal axis includes: a linear guide arrangement for enabling a linearly guided motion parallel to the axis; a motor includes a moving motor member operatively connected to the linear guide arrangement and an elongated stationary motor member extending parallel to the axis; and a force transmission arrangement operatively connecting the moving motor member to the positioning unit, wherein the force transmission arrangement is arranged to provide a semi-rigid engagement between the positioning unit and the moving motor member, wherein the positioning unit and the moving motor member, respectively, are operatively connected to the linear guide arrangement by at least two guide engaging carriages, and wherein the positioning unit is attached to the guide engaging carriages by rigid or resilient positioning unit holders.

Abstract: A primary for a linear drive motor has a stage with stacks made from solid steel. Each stack has inner and outer teeth made that form a generally u-shaped cross-section for the stack. A magnet is disposed between the first and second stacks and a a coil wrapped between the first and second stacks. The stacks may be placed in a housing or may be formed as a housingless stage. The stacks and/or housing may be modified to selectively skew motor alignment to reduce motor cogging. The stacks may be contoured to follow various secondary forms. The stack inner and outer teeth lengths may be adjusted to help balance or optimize the magnetic circuit, to increase tooth surface area for increasing force, to allow more motor windings in the coil of the stack assembly, and to help locate the magnet and coil near the tooth surface.

Abstract: The present invention relates to an electric linear drive, particularly for a rotary-lifting motor. Such a linear drive includes a winding system including a plurality of wound coils which are arranged to be coaxial to each other and successive in axial direction, and a magnet system which is movable in axial direction relative to the winding system and includes a plurality of axially successive permanent magnets. The winding system is normally fed by a controlled converter. The coils of the winding system and the permanent magnets of the magnet system define an air gap thereinbetween. Furthermore, a sensor is provided for detecting the relative movement of winding system and magnet system and for detecting the relative position of the two systems, the sensor being used for scanning a timing ruler mounted on the outer circumference of the magnet system.

Abstract: A method of constructing an electric linear displacement motor for use in a testing device includes providing a stator having as stator housing with internal coils and a through bore extending from a first end of the stator housing to the second end of the housing. First and second end supports are connected to the first and second ends of the stator housing. An armature having magnets retained therein is inserted into the stator housing such of the armature is supported by the first end support and the second end support. A plurality of set screws are inserted into threaded openings proximate both the first end and the second end of the housing. The set screws then support and retain the armature such that there is an annular gap between the armature and the coils.

Abstract: An electric linear displacement motor for use in a testing apparatus includes a stator assembly having a stator housing and a plurality of coils within the stator housing. An armature is positioned within the stator housing and includes a plurality of magnets along a length of the armature. A bearing assembly is attached to the first end of the stator housing and includes a bearing housing containing a bearing. A first end portion of the armature engages and is carried by the bearing. A brake assembly is coupled to the first end of the armature and the bearing housing. The brake assembly includes a moving portion coupled to the armature and a non-moving portion coupled to the bearing housing wherein the moving portion has less mass than the non-moving portion and therefore reduces the moving mass of the armature.

Abstract: A linear motor system is provided includes a coil assembly, a magnet assembly, and a bearing assembly disposed between the coil and magnet assemblies to allow movement of one or both of them. The bearing assembly includes a single bearing rail that can be mounted on either side of the magnet assembly. The rail has elongated recesses that receive bearing elements. A stage structure may be attached to the assembly, such at to the magnet assembly, to move a machine component along the rail.

Abstract: An electromagnetic motor includes a stator and an armature arranged to move substantially linearly relative to the stator in an intended direction during operation of the motor. A first and second flexure are connected to a first end of the armature. Each flexure has a longest portion which lies substantially in a plane that intersects a plane in which the armature lies at a substantially right angle. The flexures allow motion of the armature in the intended direction while resisting motion of the armature in one or more other degrees of freedom.

Abstract: This stage apparatus includes a movable table to hold a sample, a levitation unit to operate the movable table at least in a vertical direction, and a linear motor to operate the movable table in a first horizontal direction in a horizontal plane, including a linear motor movable element arranged inside the movable table and a linear motor stator arranged inside the movable table.

Abstract: A magnet carrier for a moving magnet actuator. The magnet carrier includes a single longitudinal beam extending in the direction of intended motion of magnet carrier and two pairs of transverse ribs, extending from opposite sides of the longitudinal beam. The longitudinal beam and the two pairs of transverse ribs are arranged to engage a pair of substantially planar magnets. The single longitudinal beam and the two pairs of transverse ribs each comprise a lip for engaging a chamfered edge of a pair of substantially planar magnets so that the lip opposes motion of the magnets in a direction perpendicular to the plane of the magnets. The longitudinal beam and the transverse ribs are adhered to the magnets by an adhesive with an elastic modulus of less than 5 MPa and a tensile strain of greater than 100%.

Abstract: A moving device comprises at least a first element provided with main magnets and a second element provided with coils. The main magnets are arranged in a grid of rows and columns, wherein main magnets in adjacent rows are oppositely polarised and staggered relative to each other. The coils can be energized for moving the first element relative to the second element in a direction parallel to the rows as well as in a direction parallel to the columns. Auxiliary magnets of the same polarity are disposed between the main magnets at least in a number of rows, wherein the strength of the magnetic field of said auxiliary magnets is different from that of the main magnets.

Abstract: A voice coil motor includes a mount, a movable unit and a number of rollers. The mount includes a through hole, a number of recesses opposing the through hole, and a number of magnetic blocks mounted in the through hole. The movable unit includes a barrel and a coil of wire surrounding the barrel. The movable unit is movably received in the through hole of the frame and surrounded by the magnetic blocks. The rollers are rotatably received in the respective recesses and come in contact with the barrel. The rollers hold the movable unit in position when no magnetic force needed to be applied on the movable unit.

Abstract: A linear vibration motor includes: a top cover; a bracket coupled with the top cover to provide an internal space; a vibration unit having a mass body mounted at the internal space and linearly moving in a horizontal direction; an actuator having a magnet fixed to the mass body and a coil installed within a range of a magnetic field of the magnet and generating electromagnetic force to allow the vibration unit to move linearly in a horizontal direction; and a buffer member disposed in a space between the mass body and the bracket and limiting displacement of the vibration unit.

Abstract: A mover includes a permanent magnet array including permanent magnets magnetized in a perpendicular direction perpendicular to a motion direction of the mover such that magnetic poles having different polarities alternately appear on magnetic pole surfaces of the permanent magnets along the motion direction. A stator includes first and second magnetic pole portion assemblies disposed on both sides of the permanent magnet array in the perpendicular direction and each including magnetic pole portions facing the magnetic pole surfaces, and a single phase winding that excites the magnetic pole portions forming the first and second magnetic pole portion assemblies. The winding has a hollow structure formed by winding a winding conductor into a coil such that the magnetic pole portions included in the first magnetic pole portion assembly and the magnetic pole portions included in the second magnetic pole portion assembly are located in an internal space of the winding.

Abstract: A linear actuator is provided with an outer tube and an inner tube inserted in the outer tube so as to be free to slide axially. A rod is erected at a central axis part of the inner tube, forming an annular space between the rod and the inner tube. Permanent magnets are retained along an axial direction in the rod, and a holder is fixed to the outer tube for retaining coils which are disposed face to face with the permanent magnets. The holder includes a cylindrical coil holding portion inserted in the annular space such that an extreme end of the cylindrical coil holding portion can move further into and backward from the annular space. The coil holding portion retains the coils within an inner peripheral surface, and a flange portion joined directly to a proximal end of the coil holding portion is fixed to the outer tube.

Abstract: A stator core unit of a linear synchronous motor is divided into a plurality of divided cores. The divided cores each include a pair of connected portions. The pairs of connected portions are disposed along a first direct drive shaft and a second direct drive shaft to form a pair of connected portion arrays. A yoke is constituted from a pair of yoke elements which are formed of a magnetic conductive material and magnetically connect the connected portions of the pair of connected portion arrays. A first array of permanent magnets and a second array of permanent magnets are disposed to be shifted from each other by an electrical angle of 180°. A first array of windings and a second array of windings are excited with the first and second arrays of windings being shifted by an electrical angle of 180°.

Abstract: An automation system is provided. The automation system includes a rail assembly comprising a first stop block at a first end and a second stop block at a second end. The automation system further includes a magnet assembly mounted on the rail assembly between the first and second stop blocks and a slide assembly configured to move back and forth over the rail assembly between the first block and the second block. The automation system further includes a linear motor coupled to the slide assembly and magnetically coupled to the rail assembly, the linear motor configured to generate a magnetic field that interacts with the magnetic assembly to provide a linear force that moves the slide assembly on the rail assembly.

Abstract: A linear actuator is provided with an outer tube and an inner tube inserted in the outer tube so as to be free to slide. The linear actuator is also provided with a rod erected at a central axis part of the inner tube and forming an annular space between the rod and the inner tube, a rod guide provided at an extreme end of the rod in sliding contact with an inner surface of the outer tube, a plurality of permanent magnets arranged along an axial direction in the rod, and a plurality of coils retained by the outer tube so as to face the permanent magnets. A cross-sectional area of an outer periphery of the inner tube along which the outer tube slides and a cross-sectional area of an inner periphery of the outer tube along which the rod guide slides are set to be equal.

Abstract: A voice coil motor includes a lens retainer, a wire, and an elastic electrode member. The lens retainer includes an end portion. The wire wraps around the lens retainer and includes a first end and a second end. The elastic electrode member is metal and is mounted to the end portion. The elastic member includes a first elastic metal sheet and a second elastic metal sheet. The first elastic metal sheet includes a first electrode. The second elastic plate is physically separated from the first elastic sheet and includes a second electrode. The first end and the second end are respectively soldered to the first electrode and the second electrode.

Abstract: A linear drive for a machine tool having a housing, having a carriage, which is mounted so it is axially movable in the housing via two bearings, and has a central axis and a length, and having at least one first motor, having a first motor element and a second motor element, wherein said first motor element is disposed on the carriage and the second motor element is disposed on the housing, wherein the first motor element is implemented on the carriage as a primary part and the second motor element is implemented on the housing as a secondary part. A method for moving a carriage for a lathe tool of a highly-dynamic machine tool employing a crossed roller bearing for mounting the carriage, wherein all roller bodies of the crossed roller bearing are always operationally linked to a carriage-side bearing surface, and the carriage is driven at an oscillation frequency of at least 50 Hz, in particular between 60 Hz and 200 Hz.

Abstract: A positioning system for positioning a positioning unit along a longitudinal axis includes: a linear guide arrangement for enabling a linearly guided motion parallel to the axis; a motor includes a moving motor member operatively connected to the linear guide arrangement and an elongated stationary motor member extending parallel to the axis; and a force transmission arrangement operatively connecting the moving motor member to the positioning unit, wherein the force transmission arrangement is arranged to provide a semi-rigid engagement between the positioning unit and the moving motor member, wherein the positioning unit and the moving motor member, respectively, are operatively connected to the linear guide arrangement by at least two guide engaging carriages, and wherein the positioning unit is attached to the guide engaging carriages by rigid or resilient positioning unit holders.

Abstract: The invention relates to a linear drive for a machine tool having a housing, having a carriage, which is mounted so it is axially movable in the housing via two bearings, and has a central axis and a length, and having at least one first motor, having a first motor element and a second motor element, wherein said first motor element is disposed on said carriage and said second motor element is disposed on said housing, wherein said first motor element is implemented on said carriage as a primary part and said second motor element is implemented on said housing as a secondary part. Furthermore, the invention relates to a method for moving a carriage for a lathe tool of a highly-dynamic machine tool employing a crossed roller bearing for mounting the carriage, wherein all roller bodies of said crossed roller bearing are always operationally linked to a carriage-side bearing surface, and said carriage is driven at an oscillation frequency of at least 50 Hz, in particular between 60 Hz and 200 Hz.

Abstract: A plate spring includes holding section, first attached section, second attached section, first spring section connected between the holding section and the second attached section, and a second spring section connected between the first fixed portion and the second fixed portion. The holding section has a first edge, second edge opposite to the first edge, and a third edge. The first attached section is positioned adjacent to an intersection of the third edge and the second edge. The second attached section is positioned adjacent to an intersection of the third edge and the first edge. The first spring section has a wavy configuration and extends from an end of the first edge to the second attached section. The second spring section also has a wavy configuration and extends from an end of the second to the first attached section. The present disclosure also provides a voice coil motor.

Abstract: A linear and curvilinear motor system includes: linear and curvilinear guiding devices movably guiding and respectively supporting right and left of a slider, each having a guide rail configured by linear tracks and a circular arc track and slider blocks; a motor unit having a stator with a stator linear section and a stator circular arc section and a mover with a linear section and provided for the slider and away from the stator with a gap interposed therebetween; and an encoder head and a hole sensor detecting positions of the linear tracks and the circular arc track. When a magnetic pole pitch of the linear section of the stator is a distance ?m and a magnetic pole pitch of the circular arc section of the stator is an angle ?m, a radius r of the circular arc track at the position detection point is defined as r=?m/?m.

Abstract: This invention relates to a positioning system for positioning a positioning unit along a longitudinal axis. The positioning system comprises a linear guide arrangement for enabling a linearly guided motion parallel to said axis, wherein the positioning unit is operatively connected to said guide arrangement. Furthermore, the positioning system comprises a motor, wherein the motor comprises a moving motor member operatively connected to said linear guide arrangement and an elongated stationary motor member extending parallel to said axis. The moving motor member is adapted to move along the stationary motor member for providing motion parallel to said axis. Moreover, the positioning system further comprises a force transmission arrangement which operatively connects said moving motor member to the positioning unit. The force transmission arrangement is arranged to provide an engagement between said positioning unit and said moving motor.

Abstract: The invention relates to a linear motor equipped with a field element and an armature and adapted to produce a force causing the field element and the armature to be relatively displaced along a given axial direction by interaction of magnetic fluxes generated between the field element and the armature during an operation of supplying electric power to the armature.

Abstract: A linear actuator having a linearly extending slider disposed in a body casing, a plurality of magnets fixed to the slider along the axial direction of the slider, and a plurality of coils supported by the body casing so as to surround the slider to which the magnets are fixed, the linear actuator being structured so that a slider shifts in the axial direction relative to the body casing due to interaction between energized coils and magnets, the linear actuator further comprising a plurality of flat springs each supporting one end or the other end of the slider in the axial direction, each flat spring being elastically deformed relative to the axial direction of the slider.

Abstract: A system contains a first actuator half containing a first pair of actuator coils and a second pair of actuator coils located above the first pair of actuator coils, wherein the first pair of actuator coils is connected to a first metallic backing. A second actuator half is also providing within the system, which contains a first pair of actuator coils and a second pair of actuator coils located above the first pair of actuator coils, wherein the first pair of actuator coils is connected to a second metallic backing. The system also contains a mechanical flexure suspension having at least one flexure supporting a permanent magnet that is capable of moving, wherein the mechanical flexure suspension is located between the first actuator half and the second actuator half.

Abstract: A method and system for transportation using a magnetic bearing structure is disclosed. In one aspect, an apparatus for carrying a load comprises a source of magnetic flux and a controller configured to control the position of the source of magnetic flux relative to a magnetizable structure. The source of magnetic flux comprises a first upper portion and a first lower portion of opposite polarities. The first portions are spaced apart horizontally from a first side of the magnetizable structure. The source of magnetic flux further comprises a second upper portion and a second lower portion of opposite polarities. The second portions are spaced apart horizontally from a second side of the magnetizable structure. The second side is opposite the first side. The first and second upper portions are magnetically attracted to an upper portion of the magnetizable structure and the first and second lower portions are magnetically attracted to a lower portion of the magnetizable structure.