36 results about "Magnetic stabilization" patented technology

The disclosure provides a diamagnetically stabilized magnetically levitated gravimeter and related method that allows measurements of relative gravity in a simple, low power consumption device based on a magnetic levitation principle using permanent magnets instead of using a mechanical spring. The gravimeter uses magnetic forces to balance a float magnet against the force of gravity, allowing for accurate measurements. The gravimeter includes a float magnet that floats between two diamagnetic materials, such as diamagnetic plates, without a need for external energy input due to the interaction between the magnetic forces of the float magnet lifted by the lift magnet but stabilized between upper and lower diamagnetic materials. The gravimeter is less sensitive to drift in response to stresses than a mechanical spring, have a lower temperature sensitivity, and lower energy and power requirements to take similarly reliable gravity measurements, which in turn simplify deployment and prolong operational lifetime.

The invention provides a multi-dimensional adjustable electromagnetic stabilizing device and a hot galvanizing process production line. The multi-dimensional adjustable electromagnetic stabilizing device is used for preventing materials from shaking and comprises a left upper coil assembly, a right upper coil assembly, a left lower coil assembly and a right lower coil assembly. The upper left coil assembly and the upper right coil assembly are located on the two sides of a material respectively, and the lower left coil assembly and the lower right coil assembly are located on the two sides of the material respectively. Each of the left upper coil assembly, the left lower coil assembly, the right upper coil assembly and the right lower coil assembly comprises multiple pairs of pole coils with the same magnetic pole distribution, and the multiple pairs of pole coils are distributed in the width direction of materials; each pair of pole coils is mounted on the transverse moving mechanism; the transverse moving mechanism is mounted on the longitudinal moving mechanism; according to the electromagnetic stabilizing device, shaking of the strip steel is restrained through electromagnetic force, the shaking amplitude of the strip steel can be greatly reduced through an electromagnetic stabilizing system, and due to the non-contact characteristic of the electromagnetic stabilizing system, the strip steel can be stabilized, and scratches to the surface of the strip steel are avoided.

The invention discloses a variable flux memory motor adopting a consequent-pole double-layer staggered permanent magnet structure. Belongs to the field of motor design and manufacturing. Each layer of permanent magnet in the variable flux memory motor adopts a high coercive force (HCF) permanent magnet and a low coercive force (LCF) permanent magnet, the HCF and the LCF in each layer of permanent magnet form a parallel magnetic circuit, and the HCF and the LCF between the two layers of permanent magnets are arranged in a staggered manner to form a series magnetic circuit, so that the double-layer U-shaped staggered permanent magnet structure can have the advantages of series connection and parallel connection of the two permanent magnets; and meanwhile, good load magnetic stabilization capability and a wide magnetic adjustment range are achieved. In addition, the consequent pole permanent magnet design can effectively reduce the magnetic circuit magnetic resistance and improve the LCF magnetizing and demagnetizing effect.

Device (100) for coating or processing a metallic or ferromagnetic strip (1) in a continuous process, in which the strip (1) is conveyed by means of a transport device (4) along a conveyor line F essentially in a horizontal position through a chamber (20), which forms a space enclosed from the environment with special conditions with regard to temperature and / or pressure, with a processing or coating device (30) inside the chamber (20), with a stabilizing device (10) which is configured to control and correct the position and / or shape of the strip (1) on the basis of signals from at least one sensor (3) in case of deviations from a predetermined target position, shape and / or orientation,wherein a stabilizing device (10) is provided as an electromagnetic stabilizing device (10) acting without contact on the belt, with a plurality of electromagnetic actuators (2) arranged distributed in the width direction of the belt (1) transversely to the conveying path F for stabilizing and correcting a position or shape of the belt (1), which are arranged at least on one side of the belt (1), in particular on the top above the belt (1) in one or more row(s) transversely to the conveying path F, and the actuators (2) are arranged at least partially, in particular with their actuator surfaces (5), inside the chamber (20).

A uniquely pivotable tonearm stabilized by magnetic fields to achieve superior fidelity during playback, is disclosed. The tonearm comprises a tonearm and an arm wand suspended using two or more torsional elements. A top nut assembly is positioned over a top chassis. The top nut assembly is rotated to provide anti-skating force by rotating counter clockwise. The torsional elements are suspended from the top nut assembly and mounted to the arm wand body as an inverted V configuration. The tonearm further comprises two or more magnets including a ring magnet mounted on a lower chassis body and a pair of cylindrical magnets mounted in the arm wand body. Further, a counterweight is mounted on an end of the arm wand and configured to provide the necessary down-force to balance a cartridge and arm wand during operation, thereby providing improved stability with significant improvement in sound quality.

The invention discloses a variable flux memory motor and a shaftless rim underwater thruster, the motor comprises a stator, an armature winding, a rotor, a plurality of low-coercivity permanent magnets and a plurality of high-coercivity permanent magnets, the armature winding adopts a twelve-phase winding, the low-coercivity permanent magnets and the high-coercivity permanent magnets are arranged in the rotor and are alternately distributed in the circumferential direction; the low-coercive-force permanent magnet is connected with the high-coercive-force permanent magnet in series in a magnetism increasing state and a magnetism weakening state, and in the magnetism increasing state, the magnetomotive force direction of the low-coercive-force permanent magnet is consistent with that of the high-coercive-force permanent magnet; and in the weak magnetic state, the reverse is achieved. By adopting the series magnetic circuit structure design of the two different coercive force permanent magnets, the load magnetic stabilization capability of the low-coercive force permanent magnets in the motor can be effectively improved, so that the magnetic field stability and the overall performance of the motor are improved.

The invention relates to the technical field of regenerated rubber particle preparation, in particular to a preparation method of environment-friendly tire regenerated rubber particles. Comprising; immersing rubber powder into a swelling solution for swelling, and drying for later use; performing plasma activating treatment on the dried rubber powder in a plasma generator; culturing thiobacillus ferrooxidans to a logarithmic phase to obtain a free bacteria solution; fixing a part of the free bacterial liquid on magnetic nanoparticles, and modifying the surfaces of the magnetic nanoparticles with amino groups to obtain an immobilized bacterial liquid; the method comprises the following steps: mixing activated rubber powder with a free bacteria solution, carrying out a first-stage reaction, carrying out centrifugal separation on the rubber powder subjected to the first-stage reaction, putting into a second-stage reaction, putting the immobilized bacteria solution and the rubber powder into a reactor according to a ratio of 10L of bacteria solution to 1kg of rubber powder, and adopting a magnetically stabilized fluidized bed reactor, a built-in permanent magnet array and the like as the reactor; the one-flash scheme effectively balances the contradiction among the environmental protection property, the product performance and the reaction efficiency.

A generator comprises a pair of coaxially aligned rotors including an inner rotor disposed within an outer rotor that combine to form a magnetic field and armature pair. First and second prime movers rotate the rotors in opposite relative directions such that electricity is produced from relative rotation of the magnetic field and armature. First and second flywheels are connected to or integral with the rotors to rotate therewith. Each flywheel has a magnetic circumference. One or more magnetic supports are arranged relative to the circumference to cause at least one vertically acting magnetic force to be exerted on the circumference to support the flywheel's weight. A pair of magnetic stabilisers are arranged on respective opposed lateral sides of each flywheel. The stabilisers cause opposed horizontally acting magnetic forces to be exerted on the flywheel's circumference to impede lateral movement of the flywheel to stabilise the flywheel.

The utility model discloses an adjustable transcranial magnetic stimulation positioning cap which comprises an elastic bridle, a side edge positioning magnetic stimulation block is arranged on the inner side of the elastic bridle, a top end positioning magnetic stimulation block is arranged at the top end of the elastic bridle, and a connecting wire harness is arranged on the side edge of the top end positioning magnetic stimulation block. A connecting plug wire is arranged in the middle of the top end of the top end positioning magnetic stimulation block, and a limiting cap is arranged at the bottom end of the top end positioning magnetic stimulation block. An anti-bending assembly is arranged on the outer side of a connecting plug wire at the top of a top end positioning magnetic stimulation block, and the inner side of an arc-shaped limiting piece is pushed to be attached to the outer portion of the joint of the connecting plug wire and the top end positioning magnetic stimulation block through the elastic force of a damping spring during use; in the using process of the transcranial magnetic stimulation positioning cap, the bending degree of the connecting plug wire is reduced through buffering of the damping spring, and the situation that the connecting position of the connecting plug wire and the top end positioning magnetic stimulation block is excessively bent, broken and damaged and even safety accidents occur is avoided.

The invention relates to a device for replacing a pump unit of a centrifugal pump, comprising a pump unit and a stator which extends in the axial direction from a first axial end, at which a cup-shaped recess is provided, into which the pump unit can be inserted, to a second axial end, the cup-shaped part can be inserted into a cup-shaped recess of the stator, a rotor for conveying a fluid is arranged in the pump housing, the rotor is provided with a magnetically effective core, the rotor can rotate around the axial direction, and the stator is designed for non-contact magnetic driving and non-contact magnetic suspension of the rotor. Wherein the rotor is passively geomagnetically stable relative to the stator at least in the axial direction. The device comprises an actuating device with which a mechanical force can be exerted on the pump unit, the mechanical force acting in the axial direction and being oriented such that the mechanical force separates the pump unit from the stator in the axial direction. The invention further relates to a centrifugal pump for conveying a fluid, comprising such a device.

The application provides an electromagnetic rotary energy harvesting device and method based on a double-layer Halbach array, which comprises coaxially arranged rotor and stator assemblies, the rotor assembly is fixed to the shaft end of a rotating machine and rotates synchronously with the shaft end of the rotating machine, the coils of the annular coil assembly are symmetrically distributed according to a three-phase winding and are connected in Y shape, the magnet housing of the stator assembly is provided with magnets and counterweights, the magnets comprise inner and outer ring magnets, the double-layer concentric cylindrical Halbach array is formed by the inner and outer ring magnets, the inner and outer ring magnets are arranged in the coil assembly and are magnetized in a radially staggered manner, the counterweights balance the electromagnetic torque by gravity torque, and the relative rotation of the rotor and stator assemblies is ensured. The double-layer Halbach array is used to concentrate the magnetism of the magnets to the middle annular air gap area, the kinetic energy-electric energy conversion is realized by combining electromagnetic induction, the magnetic stabilization and voltage stabilization are realized by adjusting the arrangement angle of the magnets, and the relative movement of the magnets and the coils is realized without additional fixation of the magnets of the stator assembly by relying on the single pendulum structure of the counterweights.

The invention discloses an outer rotor motor assembly for a low-noise cross-flow fan, which comprises a volute, a butt-joint bearing arranged in the volute, a butt-joint seat arranged on the outer side of the butt-joint bearing, a bearing chamber arranged on the top of the butt-joint bearing and the butt-joint seat, an air guide assembly arranged outside the bearing chamber, a storage box arranged on the outer side of the volute, and a lubricant arranged in the storage box. A plurality of transmission channels are arranged in the volute and used for penetrating through the storage box and the butt joint seat, a plurality of butt joint holes are formed in the butt joint seat and used for conveying a lubricating agent, components in the bearing chamber can be oiled and lubricated, the jamming condition is reduced, and a margin monitoring module is arranged outside the storage box; compared with the prior art, the external rotor motor assembly has an automatic lubrication function, can significantly prolong the maintenance period, can timely warn internal wear by monitoring the allowance and flow velocity of a lubricant in real time, ensures uniform distribution of lubrication, and effectively improves the operation stability and reduces the noise by combining with a magnetic attraction stabilization technology.

The invention discloses a 110kV XLPE cable buffer layer ablation degree evaluation method based on an electromagnetic stability factor, and the method comprises the steps: inputting a test signal with a certain amplitude and frequency into a to-be-tested cable section, calculating a cable electric field disturbance factor lambda, calculating a magnetic field disturbance factor eta, and calculating an electromagnetic stability factor sigma, and judging the ablation degree of the cable buffer layer through the electromagnetic stable factor sigma. The method has the beneficial effects that the ablation degree of the cable buffer layer is evaluated by applying the test signal to the 110kV XLPE cable, calculating the electric field disturbance factor and the magnetic field disturbance factor and extracting the electromagnetic stability factor, the evaluation method is efficient and convenient, and the ablation degree of the 110kV XLPE cable buffer layer can be better evaluated. And a scientific basis is provided for formulating operation and maintenance management and control measures for the buffer layer state of the 110kV XLPE cable in operation. The method has important practical significance for improving the operation reliability of the cable, reducing the fault occurrence rate and prolonging the service life of the cable.

The utility model relates to the technical field of nuclear magnetic resonance imaging, in particular to a magnetic resonance imaging instrument magnet structure for optimizing scanning efficiency, which comprises a base, a main body device is fixedly connected to the upper end of a nuclear magnetic stabilizing seat, and shielding devices are respectively clamped at the left end and the right end of the main body device. A sliding device is fixedly connected to the upper portion of the right end of the bed base, and a sliding groove is formed in the middle of the upper end of the bed base. The shielding device comprises a clamping ring plate, a plurality of shielding unit modules are arranged at the right end of the shielding ring plate, and the clamping ring plate is clamped and installed on the right side of the main body device. According to the magnetic resonance imaging instrument magnet structure capable of optimizing the scanning efficiency, external interference signals are effectively shielded by arranging the shielding device, it is ensured that human body feedback signals received by nuclear magnetic resonance equipment in the imaging process are accurate, and therefore the imaging accuracy and definition are remarkably improved, and the imaging quality is improved. And a more reliable basis is provided for medical diagnosis.

Magnetically stabilized cardan shaft bearing system (60), comprising: a holder (70) with a bearing receiving zone (82) with an inner annular surface (84); an insulator (90) made of a flexible material, arranged in the bearing receiving zone (82), wherein the insulator (90) has an outer section (92) supported on the inner annular surface (84) and an inner section (94) connected to the outer section (92) via several web elements (96), wherein the inner section (94) includes an opening (98) with an annular surface section (100); a cardan shaft bearing (104) arranged in the bearing receiving zone (82) and supported by the insulator (90), wherein the cardan shaft bearing (104) is arranged in the opening (98) of the inner section (94), the cardan shaft bearing (104) comprising an outer race (106) supported by the annular surface section (100), an inner race (107), and a plurality of bearing elements (109) between the outer race (106) and the inner race (107), wherein the inner race (107) of the cardan shaft bearing (104) includes a passage (112) capable of receiving a cardan shaft (46) for a vehicle rotatably supported; and an electromagnet (120) which is mounted in the holder (70) and surrounds only a part of the cardan shaft bearing (104) and the insulator (90), wherein the electromagnet (120) is selectively activated to move the cardan shaft bearing (104) within the bearing receiving zone (82).

The utility model relates to the technical field of magnetizers, in particular to a stable magnetizing magnetizer which comprises an equipment main body, a control panel is fixedly connected to the outer side of the equipment main body, a maintenance plate is rotatably connected to the outer side of the equipment main body, and a signal port is fixedly connected to the outer side of the equipment main body. A guide mechanism is arranged on the outer side of the equipment body, a clamping mechanism is mounted on the outer side of the guide mechanism, the guide mechanism comprises a connecting plate, a moving hole is formed in the connecting plate, a sliding groove is formed in the inner side of the moving hole, a sliding rod is slidably connected into the sliding groove, and a guide rod is fixedly connected to the outer side of the sliding rod. The outer side of the guide rod is fixedly connected with an L-shaped plate, and the interior of the L-shaped plate is provided with a guide hole.The device is simple in structure and convenient to use, a signal can be quickly inserted into the outer side of a signal end, meanwhile, a signal line can be kept stable during magnetizing, and then the effect of stable magnetizing is achieved.

The present invention discloses a method for evaluating the degree of ablation of a 110kV XLPE cable buffer layer based on an electromagnetic stability factor. The method comprises the following steps: inputting a test signal of a certain amplitude and frequency into the cable segment to be tested, calculating the cable electric field disturbance factor λ, the magnetic field disturbance factor η, and the electromagnetic stability factor σ, respectively; and determining the degree of ablation of the cable buffer layer by the electromagnetic stability factor σ. The beneficial effect of the present invention is that by applying a test signal to a 110kV XLPE cable, calculating the electric field disturbance factor and the magnetic field disturbance factor, and extracting the electromagnetic stability factor to evaluate the degree of ablation of the cable buffer layer, the method is efficient and convenient, and can effectively evaluate the degree of ablation of the 110kV XLPE cable buffer layer. The method provides a scientific basis for formulating operation and maintenance control measures for the buffer layer status of in-service 110kV XLPE cables. This has important practical significance for improving the operational reliability of cables, reducing the occurrence of failures, and extending the service life of cables.

The utility model discloses a magnetic-attraction quick-release multifunctional clock assembly, which relates to the technical field of clocks and comprises a clock body and a magnetic stabilization assembly fixedly mounted on the clock body. The magnetic stabilization assembly comprises a shell plate fixedly arranged on the outer side of the clock body, a groove formed in the shell plate and a magnetic plate attached and fixed in the groove, the shell plate is made of copper, and the thickness of the magnetic plate is not smaller than the depth of the groove; the clock has the advantages that the shell plate made of copper is fixed on the clock body in advance, the groove in the shell plate is used as a space for placing the magnetic plate, and the shell plate counteracts a magnetic field emitted by the magnetic plate to a certain extent, so that the operation interference of the clock movement group can be reduced; the soft cushion layer covering the groove and the magnetic plate is arranged, so that wear-resistant protection can be provided for the magnetic plate; and the arranged convex plate can increase the hanging function of the clock body.

Describes a carrier transportation system (100) for non - contact transportation of a carrier (10) along an orbital assembly. The carrier transportation system includes: a passive magnet arrangement (120) configured to generate a carrier levitation force (F L ) that cancels the gravity of the carrier; and an actively controlled two - way magnetic stabilization unit (140) configured to selectively apply a magnetic stabilization force (F S ) to the carrier (10) in both an upward direction and a downward direction to hold the carrier (10) at a predetermined vertical position within a carrier transportation space (102). Further describes a two - way magnetic stabilization unit (140) for a carrier transportation system and a carrier (10) configured for non - contact transportation with a carrier transportation system.

The application provides a multi-stage rotating flow-magnetic stabilization heterogeneous Fenton oxidation sewage treatment device and a sewage treatment method, and relates to the technical field of sewage treatment. The device comprises a premixing rotating flow zone, a main reaction zone and a water outlet separation zone which are sequentially connected in sequence from bottom to top. A rotating cutting type micro-nano bubble aeration device is arranged at the bottom of the premixing rotating flow zone to generate micro-nano bubbles and form initial rotating flow. Rotating flow devices and magnetic stabilization grids are alternately arranged in the main reaction zone. An external magnetic field generator is arranged on the outer wall of the reaction device at the position corresponding to the magnetic stabilization grid. A slanting plate sedimentation unit and a water outlet weir are arranged in the water outlet separation zone to realize in-situ separation of the catalyst. The application can strengthen gas-liquid-solid three-phase mass transfer, improve the utilization rate of hydrogen peroxide, reduce catalyst loss and sludge production, and is suitable for advanced treatment of difficult-to-degrade organic sewage such as landfill leachate.

The magnetic core for the inductor relates to the technical field of magnetic cores and comprises a magnetic core lower yoke and a magnetic core upper yoke, a lower sleeve hole is formed in the center of the magnetic core lower yoke, a left wrapping plate is fixed at the left end of the magnetic core lower yoke, and a right wrapping plate is fixed at the right end of the magnetic core lower yoke. A magnetic core upper yoke is installed between the upper end of the left wrapping plate and the upper end of the right wrapping plate, an upper sleeve hole is formed in the center of the magnetic core upper yoke, a magnetic core column is arranged between the upper sleeve hole and the lower sleeve hole in a sleeved mode, the center of the magnetic core lower yoke, the center of the lower sleeve hole and the center of the magnetic core upper yoke are located on the same axis, and notches are formed in the front side and the rear side of the magnetic core lower yoke. The left wrapping plate and the right wrapping plate are in bilateral symmetry about the center line of the magnetic core lower yoke, and first screw holes are formed in the front portion and the rear portion of the left wrapping plate and the front portion and the rear portion of the right wrapping plate respectively. The coil can be conveniently and stably wound on the magnetic core column, the outer side extrusion and the top pressing of the coil are safe and stable, the coil is not prone to loosing, electromagnetism is kept stable, dismounting and mounting are convenient, and the coil is more flexible, safer and more reliable.

The disclosure provides a diamagnetically stabilized magnetically levitated gravimeter and related method that allows measurements of relative gravity in a simple, low power consumption device based on a magnetic levitation principle using permanent magnets instead of using a mechanical spring. The gravimeter uses magnetic forces to balance a float magnet against the force of gravity, allowing for accurate measurements. The gravimeter includes a float magnet that floats between two diamagnetic materials, such as diamagnetic plates, without a need for external energy input due to the interaction between the magnetic forces of the float magnet lifted by the lift magnet but stabilized between upper and lower diamagnetic materials. The gravimeter is less sensitive to drift in response to stresses than a mechanical spring, have a lower temperature sensitivity, and lower energy and power requirements to take similarly reliable gravity measurements, which in turn simplify deployment and prolong operational lifetime.

The invention provides a magnetic assembly balance system with stable mobility performance, which relates to the technical field of magnetic assembly and comprises a magnetic stabilization platform, a magnetic assembly unit, an acceleration response module and a connection module. The magnetic stabilization platform is composed of a magnetic conduction platform and a surface texture layer and is used for bearing the magnetic assembly units; the magnetic force assembling unit is a systematic execution unit capable of being spliced and comprises magnetic single bodies of three geometric configurations, specifically, an A-type square magnetic sheet, a B-type isosceles triangle magnetic sheet and a C-type regular triangle magnetic sheet. The acceleration response module is used for controlling the stability of the system and specifically comprises a sensor and a magnetic force compensation unit; a dynamic magnetic force regulation and control mechanism is adopted, by means of closed-loop regulation of the acceleration response module and the magnetic force compensation unit, the magnetic attraction force can be adjusted in real time according to dynamic parameters such as the inclination angle and the acceleration, the problem of insufficient stability caused by non-adjustable magnetic force of a traditional system is solved, and it is ensured that no slippage or overturning risk exists in complex scenes such as inclination and acceleration.

The invention discloses a multistage magnetic-gravity cooperative system and process for carbon dioxide capture, the system comprises: a supergravity-magnetophoresis pre-concentration unit, which comprises a supergravity rotating packed bed, a paramagnetic nano adsorbent filled in the supergravity rotating packed bed and an axial magnetic field applied in the supergravity rotating packed bed, the supergravity-magnetophoresis pre-concentration unit is used for carrying out primary treatment on carbon dioxide-containing waste gas to be treated; the magnetic stabilization deep adsorption unit comprises a fixed bed, magnetic MOFs filled in the fixed bed and a gradient magnetic field applied to the fixed bed, and the magnetic stabilization deep adsorption unit retreats the waste gas treated by the supergravity-magnetophoresis pre-concentration unit and then discharges the waste gas after reaching the standard; and a magnetocaloric regeneration unit. The system provided by the invention has high CO2 capture rate, can reduce energy consumption and equipment volume, has long adsorbent cycle life, and has wide market application prospects.

A DC motor magnetic stabilization tool and a magnetic stabilization method thereof. The magnetic stabilization tool is mainly composed of a vehicle-mounted magnetic stabilization fixture, a magnetic stabilization power supply and a fixed work surface that can be connected to electricity. The magnetic stabilization fixture is easy to operate. The screw rod is rotated by a handle, and the sleeve sleeve is sleeved on the motor bracket. The blocking piece penetrates into the slot of the motor shaft core, and the motor can be locked. The control switch is turned on to block the motor. It is designed by itself, simple to process, easy to operate, and does not require complex tool design. The existing blocking tool system is all in the laboratory. This simple design can be incorporated into the production line, and 100% of the motor is blocked to achieve the purpose of magnetic stabilization; the magnetic stabilization method calculates the magnetic stability of the motor magnet and the stability of the working point, and boldly adopts the motor blocking forced demagnetization method. The motor produced by the method has stable performance throughout the life of the motor, the spark does not change suddenly and is always kept at level 1, the output torque is within the error range of ±3%, the working point efficiency remains unchanged, the motor does not demagnetize after the end of its life, and the life 100% meets the design requirements.

The utility model provides an integrated device capable of preventing glue return, stabilizing magnetism taking and positioning and guiding. The device is composed of a wire harness (1), a guide glue return prevention device (2), a magnetic wire harness forming device (3), a magnetic field taking device (4), a cooling device (5) and a positioning guide device (6). A wire harness (1) sequentially penetrates through the guiding and glue returning preventing device (2), the magnetic wire harness forming device (3), the magnetic field taking device (4), the cooling device (5) and the positioning and guiding device (6). The wire harness (1) is a bare wire harness or a wire harness (1) which is packaged twice or multiple times. According to the utility model, the wiring harness is tightly matched through the positioning block, and the guide anti-glue-return device is controlled to tightly connect the positioning block with the magnetic wiring harness forming device, so that the leakage of molten magnetic plastic is prevented, the utilization rate of the magnetic plastic is improved, and the wrapping property of the wiring harness is improved. According to the utility model, the leakage phenomenon of molten magnetic plastic cement is avoided, the magnetic field intensity of the magnetic field is oriented, and the wiring harness is uniformly coated by the magnetic plastic cement.

A uniquely pivotable tonearm stabilized by magnetic fields to achieve superior fidelity during playback, is disclosed. The tonearm comprises a tonearm and an arm wand suspended using two or more torsional elements. A top nut assembly is positioned over a top chassis. The top nut assembly is rotated to provide anti-skating force by rotating counter clockwise. The torsional elements are suspended from the top nut assembly and mounted to the arm wand body as an inverted V configuration. The tonearm further comprises two or more magnets including a ring magnet mounted on a lower chassis body and a pair of cylindrical magnets mounted in the arm wand body. Further, a counterweight is mounted on an end of the arm wand and configured to provide the necessary down-force to balance a cartridge and arm wand during operation, thereby providing improved stability with significant improvement in sound quality.

The present invention provides a puzzle kit. The puzzle kit includes a first puzzle and a second puzzle, each of which is formed by a plurality of polyhedral modules or polyhedrons connected via hinges to form a continuous loop. Each polyhedron has four faces and six sides, and at least one magnet adjacent to at least one face. The magnetically stable assembly of the first puzzle and the second puzzle forms at least one convex polyhedron, such as a cube.

In a spectroscopic analysis system, a broadband light source emits infra-red, visible or ultra-violet light which is transmitted through a fluid in a sample cell to a broadband detector. Changes in transmitted intensity are related to measurand in the fluid. A rotatable optical modulator or chopper, driven by an electric motor and located in the optical path, has light-transmissive optical elements, and non-transmissive regions. A non-contact magnetic field generator applies a magnetic field to the modulator or chopper to damp or brake the rotation. In an aspect, the modulator is an electrically conductive, non-ferromagnetic wheel, disc or cylinder in which eddy currents are induced. Optical elements may be apertures, filters, cuvettes, etc. A Hall effect sensor, rotary encoder, optical switch, etc. may determine angular speed or position of the modulator, and a PID controller may be used to maintain rotation speed at a setpoint by modulating an electromagnetic field generator.

The utility model discloses a non-magnetic stabilizer drilling device which comprises a working table, drilling equipment capable of moving left and right is arranged on the working table, clamping mechanisms and a lifting bearing table are arranged on the left side of the drilling equipment, the clamping mechanisms comprise the first clamping mechanism, the second clamping mechanism and the third clamping mechanism, and the bearing table is arranged on the left side of the drilling equipment. Wherein the first clamping mechanism and the second clamping mechanism are arranged on the bearing table, and the third clamping mechanism is arranged above the bearing table through a supporting frame. According to the drilling machining device for the non-magnetic stabilizer, under the cooperation of all the components, scratching can be avoided as much as possible when materials are clamped.