DE3719306A1 - Magnet fuer nmr-tomographen und verfahren zu seiner herstellung - Google Patents
Magnet fuer nmr-tomographen und verfahren zu seiner herstellungInfo
- Publication number
- DE3719306A1 DE3719306A1 DE19873719306 DE3719306A DE3719306A1 DE 3719306 A1 DE3719306 A1 DE 3719306A1 DE 19873719306 DE19873719306 DE 19873719306 DE 3719306 A DE3719306 A DE 3719306A DE 3719306 A1 DE3719306 A1 DE 3719306A1
- Authority
- DE
- Germany
- Prior art keywords
- magnetization
- magnet
- wound
- strand
- permanent
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 7
- 230000005291 magnetic effect Effects 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000000696 magnetic material Substances 0.000 claims abstract description 21
- 230000009975 flexible effect Effects 0.000 claims abstract description 17
- 238000003325 tomography Methods 0.000 claims abstract description 5
- 230000005415 magnetization Effects 0.000 claims description 67
- 238000004804 winding Methods 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000005294 ferromagnetic effect Effects 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 230000004323 axial length Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- DKOQGJHPHLTOJR-WHRDSVKCSA-N cefpirome Chemical compound N([C@@H]1C(N2C(=C(C[N+]=3C=4CCCC=4C=CC=3)CS[C@@H]21)C([O-])=O)=O)C(=O)\C(=N/OC)C1=CSC(N)=N1 DKOQGJHPHLTOJR-WHRDSVKCSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical group 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0286—Trimming
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873719306 DE3719306A1 (de) | 1987-06-10 | 1987-06-10 | Magnet fuer nmr-tomographen und verfahren zu seiner herstellung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873719306 DE3719306A1 (de) | 1987-06-10 | 1987-06-10 | Magnet fuer nmr-tomographen und verfahren zu seiner herstellung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3719306A1 true DE3719306A1 (de) | 1988-12-22 |
| DE3719306C2 DE3719306C2 (enrdf_load_stackoverflow) | 1991-11-21 |
Family
ID=6329392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19873719306 Granted DE3719306A1 (de) | 1987-06-10 | 1987-06-10 | Magnet fuer nmr-tomographen und verfahren zu seiner herstellung |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3719306A1 (enrdf_load_stackoverflow) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0525246A1 (de) * | 1991-08-01 | 1993-02-03 | Siemens Aktiengesellschaft | Magneteinrichtung mit einem ein magnetisches Streufeld erzeugenden Jochkörper |
| WO1994014175A1 (en) * | 1992-12-09 | 1994-06-23 | Magnet Applications Limited | Method for the fabrication of magnetic materials |
| EP0560893A4 (en) * | 1990-12-05 | 1994-09-07 | Numar Corp | System for logging a well during the drilling thereof |
| EP0645641A1 (en) * | 1993-09-29 | 1995-03-29 | Oxford Magnet Technology Limited | Improvements in or relating to MRI magnets |
| GB2294120A (en) * | 1994-09-22 | 1996-04-17 | Univ California | Eddy current-less pole tips for MRI magnets |
| DE29906661U1 (de) | 1999-04-15 | 1999-07-29 | Rheinmagnet Horst Baermann GmbH, 53819 Neunkirchen-Seelscheid | Magnetspirale |
| WO2002071090A1 (en) * | 2001-02-02 | 2002-09-12 | Ge Medical Systems Global Technology Company, Llc | Static magnetic field correction method and mri system |
| DE102017217700A1 (de) | 2017-10-05 | 2019-04-11 | Robert Bosch Gmbh | Magnetanordnung sowie Kernspinresonanz-Vorrichtung |
| DE102020003964A1 (de) | 2020-07-02 | 2022-01-05 | Baumer Hübner GmbH | Verfahren zur Herstellung einer Maßverkörperung |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3312626A1 (de) * | 1983-04-08 | 1984-10-11 | Vacuumschmelze Gmbh, 6450 Hanau | Magnetanordnung zur erzeugung eines homogenen magnetfeldes |
| FR2566958A1 (fr) * | 1984-06-27 | 1986-01-03 | Centre Nat Rech Scient | Dispositif generateur de champ magnetique uniforme |
| EP0167639A1 (en) * | 1984-06-28 | 1986-01-15 | E.I. Du Pont De Nemours And Company | Permanent magnet NMR imaging apparatus |
| EP0170318A1 (en) * | 1984-07-17 | 1986-02-05 | Koninklijke Philips Electronics N.V. | Nuclear magnetic resonance apparatus with a permanent magnet |
| US4641119A (en) * | 1985-04-19 | 1987-02-03 | Kabushiki Kaisha Toshiba | Laminar magnet for magnetic resonance device and method of making same |
-
1987
- 1987-06-10 DE DE19873719306 patent/DE3719306A1/de active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3312626A1 (de) * | 1983-04-08 | 1984-10-11 | Vacuumschmelze Gmbh, 6450 Hanau | Magnetanordnung zur erzeugung eines homogenen magnetfeldes |
| FR2566958A1 (fr) * | 1984-06-27 | 1986-01-03 | Centre Nat Rech Scient | Dispositif generateur de champ magnetique uniforme |
| EP0167639A1 (en) * | 1984-06-28 | 1986-01-15 | E.I. Du Pont De Nemours And Company | Permanent magnet NMR imaging apparatus |
| EP0170318A1 (en) * | 1984-07-17 | 1986-02-05 | Koninklijke Philips Electronics N.V. | Nuclear magnetic resonance apparatus with a permanent magnet |
| US4641119A (en) * | 1985-04-19 | 1987-02-03 | Kabushiki Kaisha Toshiba | Laminar magnet for magnetic resonance device and method of making same |
Non-Patent Citations (3)
| Title |
|---|
| JP 61-18104 A. In: Patents Abstracts of Japan, Sect. E-410, Vol. 10, 1986, Nr. 164 * |
| JP 61-18105 A. In: Patents Abstracts of Japan, Sect. E-410, Vol. 10, 1986, Nr. 164 * |
| JP 61-80810 A. In: Patents Abstracts of Japan, Sect. E-432, Vol. 10, 1986, Nr. 251 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0560893A4 (en) * | 1990-12-05 | 1994-09-07 | Numar Corp | System for logging a well during the drilling thereof |
| EP0525246A1 (de) * | 1991-08-01 | 1993-02-03 | Siemens Aktiengesellschaft | Magneteinrichtung mit einem ein magnetisches Streufeld erzeugenden Jochkörper |
| US5347252A (en) * | 1991-08-01 | 1994-09-13 | Siemens Aktiengesellschaft | Magnetic device having a yoke member for generating a magnetic stray field |
| WO1994014175A1 (en) * | 1992-12-09 | 1994-06-23 | Magnet Applications Limited | Method for the fabrication of magnetic materials |
| EP0645641A1 (en) * | 1993-09-29 | 1995-03-29 | Oxford Magnet Technology Limited | Improvements in or relating to MRI magnets |
| US5680086A (en) * | 1993-09-29 | 1997-10-21 | Oxford Magnet Technology Limited | MRI magnets |
| GB2294120A (en) * | 1994-09-22 | 1996-04-17 | Univ California | Eddy current-less pole tips for MRI magnets |
| EP1044702A3 (de) * | 1999-04-15 | 2001-12-12 | Rheinmagnet Horst Baermann GmbH | Magnetspirale |
| DE29906661U1 (de) | 1999-04-15 | 1999-07-29 | Rheinmagnet Horst Baermann GmbH, 53819 Neunkirchen-Seelscheid | Magnetspirale |
| US6558310B1 (en) | 1999-04-15 | 2003-05-06 | Bearmann Magnetics, Inc. | Therapeutic spiral magnet |
| US6780150B2 (en) | 1999-04-15 | 2004-08-24 | Baermann Magnetics, Inc. | Therapeutic spiral magnet |
| WO2002071090A1 (en) * | 2001-02-02 | 2002-09-12 | Ge Medical Systems Global Technology Company, Llc | Static magnetic field correction method and mri system |
| CN100353176C (zh) * | 2001-02-02 | 2007-12-05 | Ge医疗系统环球技术有限公司 | 静磁场校正方法和磁谐振成象系统 |
| DE102017217700A1 (de) | 2017-10-05 | 2019-04-11 | Robert Bosch Gmbh | Magnetanordnung sowie Kernspinresonanz-Vorrichtung |
| DE102020003964A1 (de) | 2020-07-02 | 2022-01-05 | Baumer Hübner GmbH | Verfahren zur Herstellung einer Maßverkörperung |
| EP3933347A1 (de) | 2020-07-02 | 2022-01-05 | Baumer Hübner GmbH | Verfahren zur herstellung einer massverkörperung |
| EP3933347B1 (de) | 2020-07-02 | 2023-06-07 | Baumer Germany GmbH & Co. KG | Verfahren zur herstellung einer massverkörperung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3719306C2 (enrdf_load_stackoverflow) | 1991-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8125 | Change of the main classification |
Ipc: G01R 33/38 |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: BRUKER ANALYTIK GMBH, 76287 RHEINSTETTEN, DE |
|
| 8339 | Ceased/non-payment of the annual fee |