GB824860A - Apparatus for the production of a homogenous magnetic field - Google Patents
Apparatus for the production of a homogenous magnetic fieldInfo
- Publication number
- GB824860A GB824860A GB22485/56A GB2248556A GB824860A GB 824860 A GB824860 A GB 824860A GB 22485/56 A GB22485/56 A GB 22485/56A GB 2248556 A GB2248556 A GB 2248556A GB 824860 A GB824860 A GB 824860A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pole
- discs
- magnetic field
- shoes
- july
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
- H01F7/202—Electromagnets for high magnetic field strength
Abstract
824,860. Electromagnets. PERKIN-ELMER CORPORATION. July 20,1956 [July 22,1955], No. 22485/56. Class 35. A magnetic field is made uniform by providing pole-shoes having a series of ferro-magnetic discs 11 spaced by layers 12, 13, 14 of low permeability as shown in Fig. 1. In the form shown in Fig. 7, the pole-shoes are energized by permanent magnets 75 surrounded by coils 79 which are used to provide the initial magnetization of the magnets, and are then used for minor adjustments of the working flux. Alternatively a pure electromagnet may be used. Exact parallelism of the pole faces is ensured by spacing them with a parallel spacer 85, the pole discs being resiliently mounted by means of spring washers or pneumatic cushions. Further improvements in the uniformity of the flux may be achieved by making the rim 15 of the pole stand slightly proud of the discs, or by placing additional coils in the working gap to eliminate edge effects.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US824860XA | 1955-07-22 | 1955-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB824860A true GB824860A (en) | 1959-12-09 |
Family
ID=22171527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22485/56A Expired GB824860A (en) | 1955-07-22 | 1956-07-20 | Apparatus for the production of a homogenous magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB824860A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3182231A (en) * | 1960-09-26 | 1965-05-04 | Varian Associates | Magnet pole cap construction |
| DE1286654B (en) * | 1963-10-04 | 1969-01-09 | Csf | Hollow cylindrical magnet arrangement |
| CN114200360A (en) * | 2021-11-10 | 2022-03-18 | 北京自动化控制设备研究所 | Three-dimensional coil magnetic field uniformity testing method and system |
-
1956
- 1956-07-20 GB GB22485/56A patent/GB824860A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3182231A (en) * | 1960-09-26 | 1965-05-04 | Varian Associates | Magnet pole cap construction |
| DE1286654B (en) * | 1963-10-04 | 1969-01-09 | Csf | Hollow cylindrical magnet arrangement |
| CN114200360A (en) * | 2021-11-10 | 2022-03-18 | 北京自动化控制设备研究所 | Three-dimensional coil magnetic field uniformity testing method and system |
| CN114200360B (en) * | 2021-11-10 | 2023-08-15 | 北京自动化控制设备研究所 | Three-dimensional coil magnetic field uniformity testing method and system |
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