WO2012115534A2 - Module magnétique - Google Patents

Module magnétique Download PDF

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Publication number
WO2012115534A2
WO2012115534A2 PCT/RU2012/000039 RU2012000039W WO2012115534A2 WO 2012115534 A2 WO2012115534 A2 WO 2012115534A2 RU 2012000039 W RU2012000039 W RU 2012000039W WO 2012115534 A2 WO2012115534 A2 WO 2012115534A2
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
magnets
magnetization
plate
magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/RU2012/000039
Other languages
English (en)
Russian (ru)
Other versions
WO2012115534A3 (fr
Inventor
Виктор Александрович БЫКОВ
Андрей Борисович ШУБИН
Сергей Олегович ДЕМОКРИТОВ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zakrytoe Aktsionernoye Obshestvo <<nanotechnology Mdt>>
Original Assignee
Zakrytoe Aktsionernoye Obshestvo <<nanotechnology Mdt>>
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zakrytoe Aktsionernoye Obshestvo <<nanotechnology Mdt>> filed Critical Zakrytoe Aktsionernoye Obshestvo <<nanotechnology Mdt>>
Publication of WO2012115534A2 publication Critical patent/WO2012115534A2/fr
Publication of WO2012115534A3 publication Critical patent/WO2012115534A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles

Definitions

  • the invention relates to equipment for the creation and regulation of magnetic fields.
  • the technical result of the invention is to expand the functionality of the device.
  • the magnetic module including the first (external) magnet with a hole, contains a second (internal) magnet located in the hole of the first magnet in such a way that their magnetizations are directed in opposite directions.
  • the second magnet is fixed to the opening of the first magnet with glue.
  • Variants are possible in which the surfaces of the first and second magnets are fixed to a first plate made of non-magnetic material, or a second plate made of soft magnetic material is fixed, or a third plate made of hard magnetic material is fixed.
  • a third plate made of hard magnetic material is magnetized in such a way that the direction of its magnetization is parallel to the magnetization of the first and second magnets, or a fourth plate made of hard magnetic material is magnetized in such a way that the direction of its magnetization is perpendicular to the magnetization of the first and second magnets, or a fifth plate made of hard magnetic material is magnetized in such a way that the direction of its magnetization is located of an angle to the magnetization of the first and second magnets.
  • the third (inner) magnet installed in the hole of the first magnet has a thickness less than the thickness of the first magnet or the fourth (inner) magnet installed in the hole of the first magnet has a thickness greater than the thickness of the first magnet.
  • the third (inner) magnet is installed in the first magnet with the possibility of axial movement relative to it or the fourth (inner) magnet is installed in the first magnet with the possibility of axial movement relative to it.
  • a first solenoid is installed along the diameter of the first magnet or a second solenoid is installed parallel to the plane of the first magnet, or a third solenoid is located between the first and fifth (internal) magnets installed in the opening of the first magnet.
  • the sixth (inner) magnet, as well as the hole of the seventh (external) magnet have the shape of a truncated cone, or that the eighth (inner), as well as the hole of the ninth (external) magnet, have a shape different from cylindrical.
  • Figure 1 shows the main version of the magnetic module.
  • Figure 2 - figure 6 shows the magnetic modules with plates at the ends.
  • Fig.8 shows the magnetic modules with different height internal magnets.
  • Figure 9 shows a magnetic module with an adjustable position of the internal magnet.
  • FIG. 10 - Fig. 12 shows magnetic modules with solenoids.
  • FIG. 13 shows a magnetic module with a conical inner magnet.
  • FIG. 14 shows a magnetic module with an oval inner magnet.
  • FIG. 15 shows the dependence of the vertical magnetic field on the distance to the center of the magnetic module.
  • the magnetic unit comprises first (external annular) magnet 1 (FIG. 1) with an opening 2 which is a second (inner) magnet 3 disposed in a hole 2 of the first magnet 1 in such a manner that their magnetization and B 2 are directed in opposite directions.
  • the second magnet 3 is fixed in the hole 2 of the first magnet 1 with glue 4.
  • glue 4 you can use the devistwo-component Hero Loctite 3430".
  • first plate 5 made of non-magnetic material.
  • a second plate 6 is fixed (FIG. 3) made of soft magnetic material.
  • a third plate 7 ( Figure 4) made of hard magnetic material.
  • the third plate 7, made of hard magnetic material, is magnetized in such a way that the direction of its magnetization B 3 is parallel to the magnetization of the first 1 and second 3 magnets.
  • the fourth plate 8 (Fig. 5), made of hard magnetic material, is magnetized in such a way that the direction of its magnetization B 4 is perpendicular to the magnetization of the first 1 and second 3 magnets.
  • Such plates can be made by synthesis and pressing in strong magnetic fields directed perpendicular to the surface of the plate.
  • the fifth plate 9 (Fig. 6), made of hard magnetic material, is magnetized in such a way that the direction of its magnetization B 5 is at an angle to the magnetization of the first 1 and second 3 magnets.
  • Such plates can be made by synthesis and pressing in strong magnetic fields directed at an angle to the surface of the plate.
  • the third magnet 10 located in the hole 2 has a thickness H5 less than the thickness H1 of the first magnet 1.
  • the value of H5 can be in the range of 3-10 mm.
  • the fourth magnet 11 (FIG. 8) located in the hole 2 has a thickness H6 greater than the thickness H1 of the first magnet.
  • the value of H6 can be in the range of 6-20 mm.
  • This movement can be carried out by means of a thread made in magnets (not shown), or thanks to a threaded sleeve 12 connected, for example, to a magnet 11 and a threaded sleeve 13 connected to a magnet 1.
  • the thread in the magnets can be pressed.
  • the bushings 12 and 13 can be made of brass or bronze.
  • the diameter of the first magnet 1 (Fig. 10) is the first solenoid 14.
  • This solenoid may consist of copper coils through which electric current flows (solenoid power supply is not shown).
  • a second solenoid 15 is installed parallel to the plane of the first magnet 1 (Fig. 1).
  • This solenoid may consist of copper coils through which electric current flows.
  • a third solenoid 17 is installed between the first 1 and fifth (inner) 16 (Fig. 12) magnets.
  • This solenoid may consist of copper coils through which electric current flows.
  • the first 1 and second 3 magnets, as well as the hole 2 of the first magnet 1 are cylindrical.
  • the eighth (inner) magnet 21 (FIG. 14) and the hole 22 of the ninth (outer) magnet 23 have a shape other than cylindrical, for example elliptical. It should be noted that the opening of the ninth magnet 23 may also have a more complex shape, as well as the ninth external magnet itself.
  • the third, fourth, fifth, sixth and eighth magnets are internal magnets and have different numbers, because they have different sizes and shapes. But they are all internal magnets and varieties of the second magnet 2. The same can be attributed to external magnets.
  • the work of the magnetic module is to create various variants of magnetic fields.
  • the second magnet 3 is fixed in the hole of the first magnet 1 with glue 4, eliminates the possible movement of the magnets relative to each other and leads to increased stability of the generated magnetic field. Glueing the second magnet 3 in the hole of the first magnet 1 is advisable in cases where the system is in conditions of strong vibration or overload and uncontrolled displacement of one magnet relative to another may occur.
  • a first plate 5 made of non-magnetic material is fixed, makes it possible to adjust the field magnitude of the magnetic module created on the surface by changing the thickness H2 of the plate 5. When changing the plate thickness from 1 mm to 3 mm the magnetic field is reduced by 70%.
  • a second plate made of soft magnetic material is fixed on the surfaces of the first 1 and second 3 (Fig. 3) magnets makes it possible to adjust the direction and magnitude of the field when moving from the center of the magnetic module by changing the thickness and magnetic susceptibility of the plate 6.
  • the magnetic field at a distance of 1 mm from the center of the magnetic module is reduced by 40%.
  • a third plate is made, made of hard magnetic material, makes it possible to adjust the direction and magnitude of the field when moving from the center of the magnetic module due to the non-uniform magnetization of the plate 7.
  • the third plate 7, made of hard magnetic material, is magnetized in such a way that the direction of its magnetization parallel to the magnetization of the first 1 and second 3 magnets makes it possible to effectively adjust the vertical component of the field when moving from the center of the magnetic module due to the inhomogeneous magnetization of the plate 7.
  • the magnetic field at a distance of 1 mm from the center of the magnetic can vary by +/- 10%.
  • the fourth plate 8 (Fig. 5), made of hard magnetic material, is magnetized in such a way that the direction of its magnetization is perpendicular to the magnetization of the first 1 and second 3 magnets makes it possible to effectively control the horizontal component of the field when moving from the center of the magnetic module due to non-uniform magnetization plates.
  • the longitudinal component of the magnetic field at a distance of 10 mm from the center of the magnet can increase by 60%.
  • the fifth plate 9 (Fig. 6), made of hard magnetic material, is magnetized in such a way that the direction of its magnetization is at an angle to the magnetization of the first 1 and second 3 magnets makes it possible to adjust both field components when moving from the center of the magnetic module due to inhomogeneous magnetization of the plate 9.
  • the angle of the magnetic field direction at a distance of 10 mm from the center of the magnetic module can be changed by 20 °.
  • the third magnet 10 installed in the hole 2 of the first magnet 1 (Fig. 7), has a thickness less than the thickness of the first magnet 1 leads to a further increase in the field created on the surface of the third magnet 10.
  • the magnetic field increases by 10%.
  • the fourth magnet 11, installed in the hole 2 of the first magnet 1 (Fig. 8), has a thickness greater than the thickness of the first magnet, increases the angle of access to the sample (not shown) placed in the field. If, with equal thickness of the magnets, access to the sample from the side surface is difficult, then in the latter case, the side surface of the sample rises above the surface of the main first magnet 1.
  • the third magnet is installed in the first magnet with the possibility of axial movement relative to it makes it possible to effectively adjust the vertical component of the field due to the movement of the third magnet.
  • the magnetic field increases by 10%.
  • a second solenoid 15 is installed parallel to the plane of the first magnet 1 (Fig. 11) makes it possible to electronically modulate the magnetic field without increasing the overall diameter of the product by changing the magnitude of the current flowing through the solenoid 15.
  • the magnitude of the modulation field reaches 5 mT.
  • a third solenoid 17 is located between the first 1 and fifth 16 (Fig. 12) magnets, makes it possible to electronically modulate the magnetic field without increasing either the total diameter of the product or its thickness by changing the magnitude of the current flowing through the solenoid 17. When this achieves the maximum value of the modulating field. When a current is passed through a 1 A solenoid, the modulation field reaches 10 mT.
  • the sixth (inner) magnet 18 (Fig. 13), as well as the hole 19 of the seventh (outer) magnet 20 are in the form of a truncated cone, allows you to create different field values on the upper and lower sides of the magnetic module and thus change the magnetic field by flipping the device.
  • the ratio of the diameters of the lower and upper sections is 1: 2
  • the field values differ by 30%.
  • the eighth magnet 21 (Fig. 14), as well as the hole 22 of the ninth magnet 23 are elliptical, allows you to create a non-axial field profile when moving from the center of the magnetic module.
  • the ratio of the lengths of the axes of the ellipse is 1: 2
  • the field gradients at a distance of 1 mm from the center of the magnet differ by 20%.
  • the eighth magnet 21, as well as the hole 22 of the ninth magnet 23 have a shape different from cylindrical and gliptic allows you to create a complex field profile when moving from the center of the magnetic module due to the appropriate choice of the said shape. It should be noted that the ninth magnet 23 itself may also have a shape other than cylindrical.
  • the magnetic module can be effectively used in scanning probe microscopy.
  • the geometrical parameters of the studied magnets the diameter of the external magnet is 56 mm, the diameter of the hole of the external magnet is 16 mm, the diameter of the internal magnet is 15 mm. The height of both magnets is 6mm.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measuring Magnetic Variables (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

L'invention concerne le domaine des équipements pour la nanotechnologie et plus particulièrement des dispositifs permettant l'observation et la mesure des propriétés d'objets dans un champ magnétique. Selon l'invention, un module magnétique comprenant un premier aimant (aimant externe) comportant un orifice comprend un deuxième aimant (aimant interne) disposé dans l'orifice du premier aimant de manière à ce que leurs aimantations soient dirigées dans des sens opposés. Une variante est également possible selon laquelle le deuxième aimant est fixé dans l'orifice du premier aimant avec de la colle. Des variantes sont également possibles selon lesquelles certains espaces des premier et de deuxième aimant comportent une première plaque réalisée en un matériau non magnétique ou une deuxième plaque réalisée en un matériau magnétique dur, les deux plaques étant fixées. Des variantes sont également possibles selon lesquelles la troisième plaque réalisée en un matériau magnétique dur est magnétisée de sorte que sa direction d'aimantation soit parallèle à celle des premier et deuxième aimants ou que la quatrième plaque faite en un matériau magnétique dur soit magnétisée de sorte que sa direction d'aimantation soit perpendiculaire à celle des premier et deuxième aimants ou que la cinquième plaque faite d'un matériau magnétique dur soit magnétisée de sorte que sa direction d'aimantation soit orientée à un angle par rapport à l'aimantation des premier et deuxième aimants. Il existe des variantes selon lesquelles un troisième aimant (aimant interne), monté dans l'orifice du premier aimant, a une épaisseur inférieure à celle du premier aimant ou un quatrième aimant (aimant interne) monté dans l'orifice du premier aimant qui possède une épaisseur supérieure à celle du premier aimant. Il existe également des variantes selon lesquelles un troisième aimant (aimant interne) est monté dans le premier aimant de manière à permettre un ajustement axial par rapport à celui-ci ou un quatrième aimant (aimant interne) monté dans le premier aimant de façon à permettre un déplacement axial par rapport à ce dernier. Des variantes sont possibles selon lesquelles on a monté sur le diamètre du premier aimant un premier solénoïde ou on a monté parallèlement au plan du premier aimant un deuxième solénoïde ou qu'on a monté un troisième solénoïde entre le premier et le cinquième aimant (aimants internes) monté dans l'orifice du premier aimant. Des variantes sont également possibles selon lesquelles un sixième aimant (aimant interne) ainsi qu'un orifice du septième aimant (aimant externe) a la forme d'un cône tronqué ou qu'un huitième aimant (aimant interne) ainsi que l'orifice de l'aimant externe (neuvième aimant) a une forme différente de celle cylindrique. Tous ces effets techniques élargissent les capacités fonctionnelles du dispositif.
PCT/RU2012/000039 2011-02-22 2012-01-27 Module magnétique Ceased WO2012115534A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2011106381/07A RU2011106381A (ru) 2011-02-22 2011-02-22 Магнитный модуль
RU2011106381 2011-02-22

Publications (2)

Publication Number Publication Date
WO2012115534A2 true WO2012115534A2 (fr) 2012-08-30
WO2012115534A3 WO2012115534A3 (fr) 2012-10-26

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ID=46721378

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2012/000039 Ceased WO2012115534A2 (fr) 2011-02-22 2012-01-27 Module magnétique

Country Status (2)

Country Link
RU (1) RU2011106381A (fr)
WO (1) WO2012115534A2 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781736A (en) * 1972-10-26 1973-12-25 Gen Electric Shield for permanent magnet structure
DE2346042B2 (de) * 1973-09-13 1978-09-21 Thyssen Edelstahlwerke Ag, 4000 Duesseldorf Dauermagnethaftsystem mit veränderbarer Haftkraft
SU546959A1 (ru) * 1974-12-09 1977-02-15 Предприятие П/Я М-5174 Магнитна система
DE29515302U1 (de) * 1995-09-25 1995-11-30 Rheinmagnet Horst Baermann GmbH, 53819 Neunkirchen-Seelscheid Magnetanordnung
KR101225305B1 (ko) * 2004-02-03 2013-01-22 애스트로노틱스 코포레이션 오브 아메리카 영구자석 조립체
JP4558563B2 (ja) * 2005-04-11 2010-10-06 信越化学工業株式会社 永久磁石式磁界発生装置

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Publication number Publication date
WO2012115534A3 (fr) 2012-10-26
RU2011106381A (ru) 2012-08-27

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