96 results about "Diamagnetism" patented technology

A magnetic arranged vibration shook sensor comprises a shell, permanent magnetic steel, a diamagnetism spacer ring, a base, piezoelectricity component and a signal conditioner, wherein, the shell and the base are closely fitted, assembled, and, after welded, combined to form a closed installation space wherein the piezoelectricity component and the signal conditioner are arranged at the upper part, and form a installation space for permanent magnetic steel in the base; the piezoelectricity component consists of an insulation sheet, an upper conducting strip, a lower conducting strip, an upper electroceramics, a lower electroceramics, a positive conducting strip, a negative conducting strip and a quality block, and is connected to the base through screws; the signal conditioner is arranged on a supporting frame of the piezoelectricity component; the diamagnetism spacer ring, the excircle of which is coated with glue, is firstly pressed into the bottom hole of the base made of ferromagnetic material, then the permanent magnetic steel with high parallelism, finish and planeness is pressed into the center hole of the base, a thin layer of spirit glue with high intensity and high hardness is filled coordinately, the inner disk of the diamagnetism spacer ring is provided with a plurality of equally distributed small grooves which are connected with the magnetic steel and the spacer ring hard through glue; meanwhile, various electric sensing circuits are arranged according to requirements in order to form the magnetic arranged vibration shook sensor.

The invention discloses a directionally arranged graphene super high heat conductivity composite material, and a preparation method thereof. The directionally arranged graphene super high heat conductivity composite material is composed of non-oxidation reduction graphene nanometer sheet, a high molecular matrix, a dispersant, and a couplant through combination; gradient magnetic field is appliedso as to realize internal directional arrangement of the non-oxidation reduction graphene nanometer sheet in the high molecular matrix. According to the preparation method, full utilization of graphene surface internal high heat conductivity characteristics is adopted, directional arrangement is realized under the graphene landau diamagnetism action; when the adding amount is equal, the heat conductive performance of the obtained is much better than that of other doped graphene materials or common graphene mixed materials.

A magnetic recording medium, including a substrate, and a data-storing thin film layer formed over the substrate. The data-storing thin film layer is comprised of cobalt (Co), platinum (Pt), and a multi-component oxide. The multi-component oxide has cations with a reduction potential of less than −0.03 electron volts, and atomic radii of less than 0.25 nanometers. Additionally, the multi-component oxide is diamagnetic, paramagnetic, or magnetic with a permeability of less than 10⁻⁶ m³/kg. The multi-component oxide has a dielectric constant greater than 5.0. The sputter target is further comprised of chromium (Cr) and/or boron (B).

A mass is levitated with respect to a base, at least one of which is comprised of a diamagnetic material, with the levitated mass also having a permanent magnetic property. A second permanent magnet is optionally configured such that it attracts the levitation mass away from the base to overcome gravitational force on the mass, thereby suspending the mass over the surface of the base. The mass is contained in a nonmagnetic, non-shielding and optionally optically-transparent housing so as to limit its excursion within a range of levitation positions. A position measurement means such as a laser interferometer, capacitance detector, or pickup coil is configured to measure positional deviations of the mass in response to incident pressure wave, the output of which being an electronic signal representing the pressure wave.

Magnetic-particle photocatalyst with a core-shell structure takes a ferromagnetism particle, a paramagnetism particle or a diamagnetism particle as a core, and photocatalyst as a shell. The ferromagnetism, paramagnetism or diamagnetism particles are gamma-Fe2O3, SiO2 or MnO particle respectively, and the photocatalyst is Gd3-xBixSbO7, Gd3-xYxSbO7 and In3-xBixTaO7 respectively, wherein the grain diameter of the gamma-Fe2O3, SiO2 and MnO is 80-2,000nm. Water-treatment is carried out on the photocatalyst in a magnetic field-photocatalytic system, and the periphery of a reaction system for water-treatment is provided with an alternating magnetic field generator with adjustable magnetic field intensity, wherein the range of the magnetic field intensity is 0-15T, and radiation light sources of the reaction system adopt a 300W xenon lamp and a 400W high-voltage mercury lamp; the ferromagnetism particle, paramagnetism particle and diamagnetism particle respectively account for 33+/-10% in themagnetic-particle core for coating the photocatalyst, and are completely and uniformly dispersed in aqueous solution, thus the composite photocatalyst is uniformly distributed in the upper, middle and lower layers of the aqueous solution.

The invention discloses a method for detecting free radical ration in coal tar. The method comprises the steps of removing moisture in the tar in a high speed centrifuging manner, and preserving a tar sample under low temperature or inert atmosphere; adopting a diamagnetism substance to deliquate DPPH(1,1-Diphenyl-2-picrylhydrazyl radical 2,2-Diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl) to prepare a plurality of DPPH standard samples with different free radical concentrations, carrying out EPR (electron paramagnetic resonance) measurement, carrying out secondary integration on an EPR spectrogram, and recording the corresponding secondary integration area; establishing a standard curve according to the free radical contents of the DPPH standard sample with different free radical concentrations and the secondary integration area of the corresponding EPR spectrogram; and filling the tar sample into a pipe, measuring according to the same EPR measuring condition, carrying out secondary integration on the measured EPR spectrogram, and substituting the secondary integration area into the standard curve so as to obtain the free radical content N. The method provided by the invention can exactly measure free radical content in coal tar, meanwhile, the change of the content of the free radical in the coal tar along with the preservation condition is exactly measured, and the method for detecting ration is provided for the research of the free radical in the coal tar and is very simple and easy.

A high capacity magnetic filter separates diamagnetic and/or paramagnetic substances from fluid streams. Diamagnetic solid substances are magnetized under an external magnetic field through coordinated interaction of diamagnetic solid substances with an inducement paramagnetic material (IPM). The magnetic filter serves as a separation zone created by the presence of IPM and magnets that are shielded from the IPM by non-magnetic sleeves or partitions. The IPM in the void volume between the magnets affords large surface area onto which diamagnetic and paramagnetic materials can contact and be attracted to. The relative position and distance of the magnetic source, such a magnetic bar or electromagnet, to the solid mixture of diamagnetic and IPM are adjusted to induce sufficiently strong magnetism in the diamagnetic solids which causes the diamagnetic solids to be attracted by the magnetic field as well. Both diamagnetic and paramagnetic substances can be removed from a liquid or gas.

An apparatus for separating a stream of particles with individual sizes smaller than 300 μm and magnetic properties ranging from collective magnetism as in ferromagnetism to paramagnetism to diamagnetism. The apparatus includes a plurality of stages for separating a stream of particles. The apparatus includes a magnetic component producing a magnetic force associated with each stage. The apparatus includes an aerodynamic component producing an aerodynamic force associated with each stage, where the more magnetic component or components of a feed of particles for each stage is separated and either or both the less magnetic product and the more magnetic product of each stage are the feed for separate succeeding stages with each stage and where the magnetic and aerodynamic forces along with gravimetric forces of each stage are chosen to separate more strongly magnetic particles from less magnetic particles.

A method for separating a stream of particles with individual sizes smaller than 300 μm and magnetic properties ranging from collective magnetism as in ferromagnetism to paramagnetism to diamagnetism.

The invention provides an anti-counterfeiting mark capable of being recognized through presentation of a stereoscopic pattern. The anti-counterfeiting mark is characterized in that the stereoscopic pattern is formed through combination of magnetic printing ink and oriented arrangement of magnetic orientation printing plates; the magnetic printing ink comprises paramagnetism printing ink or diamagnetism printing ink; the paramagnetism printing ink is a paint containing iron magnetic substances; the diamagnetism printing ink is a paint containing diamagnetism substances; the paramagnetism or diamagnetism printing ink contains the constituents including 10-95 parts by weight of film forming substances, 1-25 parts by weight of the paint which can be arranged in an oriented manner in a magnetic field and contains the iron magnetic substances or the diamagnetism substances, 1-10 parts by weight of assistant agent and 0-88 parts by weight of solvent; and the paint which contains the iron magnetic substances or diamagnetism substances takes reflecting-material paints as the base material; and the base material is covered by the iron magnetic substances or the diamagnetism substances. The image has the high concretization and stereoscopic sense; and the recognition manner of the mark is visualized and efficient.

A magnetic/energetic apparatus for purifying gas mixtures comprises a vortex tube and magnetic elements. Such an apparatus can include an inlet valve configured to receive a gas mixture having one or more disposed paramagnetic gas species and one or more diamagnetic gas species; a high-shear environment energetic separation chamber coupled to the inlet valve; a plurality of magnetic elements coupled to an outer wall of the high-shear environment separation chamber, wherein each of the plurality of magnetic elements are arranged so as to have a respective pole alternating in polarity with respect to an adjacently positioned magnetic element so as to induce a field gradient between each of the adjacently positioned magnetic elements and within the inner wall of the high-shear environment separation chamber; and at least one exit valve so as provide a substantially separated one or more paramagnetic gas species from the one or more diamagnetic gas species.

The present invention provides a method and an apparatus capable of continuously and accurately separating, by type, a mixture containing at least two types of particles, or capable of separating specific particles from the mixture, using a gradient magnetic field. In the present invention, a mixture containing at least two types of particles, particles of one type of which are made of a paramagnetic or diamagnetic substance, is treated. A magnetic field whose magnetic field gradient has a vertical component and a horizontal component is applied to a supporting liquid 21 stored in a separating tank 31. When the mixture is placed into the supporting liquid 21, the particles of the one type are guided such that they are positioned in the supporting liquid 21 at a predetermined height from a bottom face 39 of the separating tank 31 while horizontally traveling. Alternatively, the particles of the one type magnetically levitate at a liquid surface of the supporting liquid 21 and horizontally travel. Particles of another type of the at least two types of particles are positioned at a position vertically different from that of the particles of the one type, between the bottom face 39 of the separating tank 31 and the liquid surface of the supporting liquid 21.

The present invention discloses a device that can suspend objects in intense magnetic field with large grade and is used for suspending fluid or solid state diamagnetic material and for making the diamagnetic material be sealed in an environment that is sealed and can be heated or cooled and whose temperature is controllable and is observable at any time so as to realize processing of the diamagnetic material in the states of zero gravity no-container and suspension, the present invention comprises a suspension cavity 5, a sample feeding controller 8, a temperature controller 6 and a video pick-up device 2, etc. The suspension cavity is a sealed cavity and can prevent outside environment from polluting the suspension material and prevent the volatilization of fluid sample. Besides, the suspension of the solid diamagnetic sample that is arranged in the suspension cavity can be realized through changing the position of the suspension cavity 5 in the magnet test cavity; the sample feeding controller 8 can realize precisely control the suspension of the fluid diamagnetic sample; the temperature controller 6 can realize heating or cooling of the sample and precision control of the processing temperature of the sample; the video pick-up collector 2 can realize real-time observation and recording of the process of the sample processing.

The invention uses a dispersion (303) of suspended single-layer graphene (201), multilayer graphene (202), and graphite (203), and applies a magnetic field to the dispersion (303) to separate the single-layer graphene (201) from the dispersion (303). In the magnetic field applying step of the graphene producing method, the single-layer graphene (201), the multilayer graphene (202), and the graphite (203) are situated at different locations in solvent by using the difference in the diamagnetism strengths of the single-layer graphene (201), the multilayer graphene (202), and the graphite (203).

The invention discloses a smart home anti-pinch door using a superconducting magnet diamagnetism principle. The smart home anti-pinch door comprises a door frame, a movable door, an anti-pinch deviceand a hinge; a controller is electrified to control closing of an electromagnetic valve by using a hydraulic device; oil is sealed on the left side of the hydraulic cylinder; a piston and a corrugatedextension pipe are stopped by using continuous boosting flexible resistance of the oil, so that the door closing speed and the impact force are reduced, the noise caused by heavy closing due to influence on the door by the inertia is prevented, and the door, a lock and other objects are protected from damaging; the controller is electrified to enable a coil to generate magnetic field connection by using the anti-pinch device to generate relative movement between a superconducting magnet and an aluminum ring, and the aluminum ring generates induction current to achieve a magnetic repulsion effect; and the closing of the movable door is stopped by using magnetic repulsion force to prevent pinching injury or collision injury of children caused by quick closing of the door due to such external force factors as gale when playing beside the door, so that potential safety hazards are effectively prevented, and the personal safety of the children is guaranteed.

The invention discloses a magnetic field modulation hybrid excitation transverse flux linear generator, which comprises an outer stator, the inner part of the outer stator is hollow, an inner stator is sleeved in the outer stator, a composite magnetic field is formed between the inner stator and the outer stator, and rotors distributed in an array are arranged between the inner stator and the outer stator. The rotor reciprocates along a straight line to cut a magnetic induction line between the inner stator and the outer stator, the rotor comprises magnetic sheets distributed in an array and diamagnetic sheets distributed in an array, the magnetic sheets and the diamagnetic sheets are arranged at intervals, and the staggered arrangement of each rotor is different. According to the generator, the rotor with the magnetic sheets and the diamagnetic sheets distributed at intervals is arranged, the magnetic field modulation effect is achieved, the magnetic field conversion speed of the armature winding of the magnetic field modulation linear motor is increased at a low speed, and the voltage of the output end of the motor is increased; and the rotor moves along a straight line, so that the intervals between the magnetic sheets and the diamagnetic sheets between the outer stator and the inner stator are changed, a sine flux linkage is formed, and a three-phase sine back electromotive force is obtained.

The invention discloses an electrostatic type energy collector based on solar energy. The collector comprises a light condensing device, a magnet, an electret assembly, a collection electrode assembly, a housing and a cover plate. The electret assembly consists of a pyrolysis graphite flake, an insulation layer, an electret and a protection electrode. Due to the diamagnetism of the pyrolysis graphite flake, the electrets will be freely suspended to the upper part of the magnet under the effects of the magnetic force resisting ability. By use of double convex lenses, sunlight is condensed to the edge of the pyrolysis graphite flake and the electret rotates. Capacitance is formed between the collection electrode and the electrets, so when the electret assembly rotates, the relative area of the capacitor is changed, and charge on the collection electrode is also changed. Through an energy management circuit, charge on the collection electrode is stored and it is achieved that solar energyis converted into electric energy.

Provided are a wire wound device that can minimize the flow of magnetic fluxes into gaps between the adjacent encircling conductor parts and achieve high efficiency, even if no magnetic core formed from a magnetic substance is inserted, and also a method for manufacturing the device, the wire wound device comprising: a winding having a plurality of encircling conductor parts made of a conductive substance upon a predetermined winding pattern; and an insulation layer interposed between a pair of encircling conductor parts adjacent to each other among the plurality of encircling conductor parts constituting the winding, the insulation layer comprising an insulating substance formed by performing a non-conductive process of a diamagnetic conductive substance.

The invention provides a piezoelectric nano composite material and a preparation method thereof. The piezoelectric nano composite material comprises Gd-doped barium titanate nano particles and a PLGAbase material, wherein the Gd-doped barium titanate nano particles are uniformly dispersed in the PLGA base material, for the Gd-doped barium titanate nano particles, Gd ions enter barium titanate inan ion doping mode, replace the position of positive ions in BTO and enter a tetragonal phase structure of BTO, a certain influence is caused to a tetragonal phase structure of barium titanate, and thereby piezoelectric property of a composite material is improved, surface charges of the piezoelectric material can be improved, moreover, due to doping of the Gd ions, the magnetism of the nano particles is converted from diamagnetism to paramagnetism, the density of the nano particles is increased, the material is endowed with a developing and tracing function, and the MRI and X-Ray double-developing effect is achieved.

The invention provides an impeller-type flowmeter flow high-speed sampling sensor to solve the problem that conventional sampling sensors are short in detecting distance, poor in diamagnetism and inaccurate in measuring. The impeller-type flowmeter flow high-speed sampling sensor mainly comprises a high-speed sampling probe and a sensor controller, a coil, a coil support and a protecting support are arranged in the high-speed sampling probe, and the sensor controller comprises a power-source power supply device, a radio wave generating device, a raid wave receiving device, a sampling recognition device, an edge steep pulse generating device, a sampling signal converting device and a sensor signal outputting device. The impeller-type flowmeter flow high-speed sampling sensor is suitable for various impeller-type flowmeters to realize high-speed measuring, and has the advantages of micro power consumption, wide voltage, good temperature characteristic and voltage resistance, excellent output signal and the like; in addition, the impeller-type flowmeter flow high-speed sampling sensor is free of any resistance on an impeller, long in detecting distance, good in resistance to ferromagnetism and accurate in measuring, and different shells can be chosen for different purposes.

The invention discloses a forming die and method for preparing a high-performance radial neodymium-iron-boron magnet. The forming die comprises a female die with an oval cavity, an elastic element, amagnetism gathering plate made of a near-permeability material, an upper pressing head, a lower pressing head, an inner hole core rod, a female die sliding block, an elastic element and the like, wherein the upper pressing head and the lower pressing head are made of nonmetal diamagnetic materials. A mixed liquid additive containing a dispersing agent, an antioxidant, a release agent, nitride andthe like is added in a pulse spraying manner during three-dimensional stirring, so that the formability and fluidity of powder are improved; a multi-time magnetization opposite progressive pre-pressing process is adopted, so that automatic pressing and demolding of a radial circular ring are realized, and cracking of the magnet due to uneven density is avoided; and the oxygen content of the magnetis effectively reduced, so that nitrides are distributed at a grain boundary, the growth of crystal grains is inhibited, the crystal grains are effectively refined, the intrinsic coercivity of the neodymium magnet is improved, and the radial ring neodymium magnet with low cost and high performance is prepared.

The present invention belongs to the geological survey technical field and relates to a focusing type superconducting nuclear magnetic resonance detection device. The focusing type superconducting nuclear magnetic resonance detection device comprises a high-pressure sealing shell, a control assembly, a refrigeration assembly, a nuclear magnetic signal generating assembly and a temperature control assembly. According to the focusing type superconducting nuclear magnetic resonance detection device of the invention, the pulsed magnetic field intensity can be greatly increased through using the superconductivity of a superconductor, a generated electromagnetic field can be directionally focused through using the complete diamagnetism of the superconductor, and therefore, measurement depth can be increased directionally; and on the other hand, since the resistance of a superconducting receiving coil is approximate to zero resistance, nuclear magnetic resonance weak signals are slowly attenuated in the superconducting receiving coil, namely, the superconducting receiving coil has high sensitivity to the weak signals, and therefore, required low-intensity MRS signals enabling larger exploration depth can be extracted. The device has the advantages of small size, compact structure and high sensitivity, and is especially for tunnel construction, underground construction and so on.